AK-47 Tips/Tricks, Links, Content and Buyer Guides. Definitive Arms DAG-13, 13 position adjustable gas block/sight block combo. Our beautiful custom finished AK-47 furniture is a show stopper and will be sure to turn some heads at the range! The AK Vezhlivyy Strelok VS-24 + VS-33c handguard & gas tube combo (VS Combo) is a gas block in Escape from Tarkov. Customer Reviews. Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. You would have to weld up the old port hole in a Bulgarian. Add to cart; Russian Authentic AK Front Sight Gas Block Chrome-lined gas chamber AK 100 SERIES AK Trigger Ultimate with Lightning Bow (AKT-UL) I would imagine the gas block combo should have less cant or be straighter, just because of the design of the gas block but I believe u/ace74u is correct. 99 Add to cart; AK-47 M4 STOCK ADAPTER – RIFLE DYNAMICS Jan 10, 2018 · - The DAG-13 FSGB combo block weighs about the same as a 100 series FSGB (0. 4150v Nitride Barrel and Front sight block only, for AK-74 and AK-100 variant rifles in all calibers, 24x1. BananaMag. This is new, it doesn't have the detent hole. Download APK for Android Game, Android App - Latest Version, Old Versions, Android Tablet, Android Smart TV, Android Wear, armeabi-v7a, arm64-v8a, x86, x86_x64 - Free Rifle Dynamics Tunable Front Sight/Gas Block Combo (45°/90° Gas Ports) $79. It’s a little pricey, but it’s a larger, nicer version made to work with combo gas blocks. JAG. Please contact the moderators of this subreddit if you have any questions or concerns. Nov 26, 2019 · Express orders placed after 12pm will not be shipped until the following business day. he block is 100% made in the USA from 4140 steel (body Feb 19, 2006 · The Russian one is about a 1/4 inch rearward towards the rear gas block. Acceptable journal range for gas block is . 16mm gas block/front sight. You have been warned. Whether enhancing performance or undertaking a complete transformation, the ReCreator AK Krinkov Combo Block is a must The Tunable FS/GB (front sight/gas block) features an adjustment screw on the front face of the block to either open or close off gas. Press or tap out the 3mm pins in gas block Same thing, support the gas block while pressing the barrel That’s removal. Zastava YUGO M64 M70 AK-47 Gas Block w/Grenade Sight - AK47 Parts at GunBroker. $20. We have sold thousands of these assembly’s. - Will not distort or damage the receiver. I wanna swap the gas block for a combo block and have the barrel chopped to a 14. There are really no integrated FSB/GB in AK47 pattern that will work on the Zastava/Yugo AK47 pattern barrel. This sight combo is the proper size Aug 4, 2019 · AK adjustable gas block front front sight combo install on an 11. I’ve been thinking the same thing, I think that getting a 103 and just getting a combo gas block/sight may be the best move. 56 ak. Sight Drum and Sight included. "Block Puzzle Battle" is an arcade-style puzzle game where you can experience the real fun of arcade competition in consecutive block puzzles. This is a 7. Includes Gas block, Front sight block, & Front sight drum. #4 · Nov 1, 2021. The Bulgarian combo is standard AK74 journal size and a direct fit. Product Details. It is compatible with the AR-15 Upper receiver or the AR-10 Upper receiver, it comes with 2 quick release pins for rapid work, it comes in ODIN Green or Red Anodized finish and its made of 6061 Billet Aluminum. I am a bot, and this action was performed automatically. 6). I'm not tied to any particular country or company of origin, I just want the thing to be bombproof and reliable. - System is adjustable without tools. By popular demand we've added a combination front sight gas block version of our standard adjustable gas block. Try not to cut into the brl. Barrel pins, plunger pin, plunger pin spring, and retainer spring are not included. Availability: Out of Stock. This block uses an AR-15 front sight post, allowing for lots of options for tritium and non-standard post designs like a forward ghost ring. 5 RH Threads. Gas cups are black nitrided. Quantity: Add to Cart. Caliber. 56 STEEL LINED 30 Round Magazine Polymer Black. It can also be set up so that it doesn’t mar the front sight. Comes in black and white. Magnamatic makes one. I know the RD model is screwed on and the sight doesn't elevate. This AK47 Pistol is chambered in 7. If not, how hard is it to modify a 15mm gas block to fit? Gas port is 90 degrees btw. Comes with AK Sight Tool. Choosing between a traditional gas block and combo block. M90 with its current barrel length is a sorta SPR and heavy. 1-2) · AK TROY Full Length Rail handguard & gas tube combo · AK Kiba Arms VDM CS gas tube · Molot Arms AKM-type gas tube · PP-19-01 "Vityaz" gas tube · AK UltiMAK M1-B gas tube & handguard · AK Vezhlivyy Strelok VS-24 + VS-33c handguard & gas tube combo Each rifle contains hand pressed Russian Spec Rivets and a Romanian Military Cold Hammer Forged Barrel. This Polish Gen 3 AKM Gas Block combo by WBP comes with all sight components (drum & sight post). Mar 5, 2023 · Gas block/FSB combo? Jump to Latest Follow 928 views 4 replies 5 participants last post by WiClovis Mar 9, 2023 AK-74 gas tube (6P20 Sb. Barrel pins not included. Promag AK-223 5. Condition varies. This model is intended for use with AKM, AK47, AK74, 100 Series AKs, and various other AKs that utilize 15mm ODs at the Gas Block. Nov 10, 2020 · AKBLUE. 95 Select options; AK104 / AK105 Combo Block Kit – Palmetto State Armory $ 69. 62×39 equipped with an AK74 style brake. It allows you to enjoy block puzzles in your leisure time and relieve stress. Brake for a Rus 24mm combo block I’ve ran Jmac brake before, I know they make a Must-have when cleaning, repairing or assembling your AK rifle without scratching or damaging. KRINKOV STYLE front sight/gas block combination assembly for UR type/short AK rifles with stamped and milled receivers. Same with the gas block. This model fits 15mm barrel journals. 4 oz. Romanian manufactured AKM Gas Block, blued, 7. 599. It does not appear to have been installed ever. Nov 24, 2021 · Brand : WBP. Maybe its the better way to go. 5inch AMD 65 type AKM pistol. 1-2) · AKM gas tube (6P1 Sb. 5” version of the SAM5. heat up the new gas block and install the same way. So, take that as you will. They are designed from original Bulgarian AK Combo Block Specifications to fit the majority of available AK platforms, including the following variants: AK 102. Being factory *NEW* blocks they have the pilot holes for pins, but will require drilling. Billet Machined Alloy Steel. 62x39. The drum adjusts windage left and right, and the post screws up and down for elevation. 99. Add to Cart. This is designed to work with all standard 15mm gas block diameter barrels. 62x39mm. Built using Romanian MD63 Military Surplus parts kits Classic AK Hanguards and Grip; 90 Degree Combo Sight/Gas Block, 800 Meter Rear Sight; Side Rail Optics Mount and Hinge Block; 1-30 Round Magazine; Palmetto State Armory AK-104 Side Folding Pistol W/ Hinge Block. That’s a factory 12. Reviews. 56x45mm, providing shooters with unparalleled flexibility in ammunition selection. We are proud to announce, the Romanian Military Classic AKM with a Military Combo Block! BRAND NEW Romanian Military Parts From the Famous ROMARM Factory in Cugir, Romania! Lee Armory Enhanced Receiver – X, Y Full Auto Embossed Markings Jan 26, 2022 · WBP Gas Block Combo. JMAC Customs GBC-13 Gas block Front Sight Combo with no parts fitted, has opening for detent, *NEW*. #5 · Oct 22, 2021. Gunsmith installation is not required, but highly recommended. Arsenal Bulgaria. Depends. Anti-Glare Front Serrations. 5 pin and weld. 4oz difference) even with the added features. p65warnings. gov. This press and pin combo is without a doubt the nicest gas block combo to hit the market in this low price range. Accepts standard AK Front Sight Drums. These are brand new Bulgarian Krink AKSU Combination Gas Sight Blocks. Looking at buying a headspaced kit from AOA to build out a 5. Whether you're enhancing your rifle's performance or undertaking a complete transformation, the ReCreator AK Krinkov Combo Block is a must-have for gun My repop krink block looks better than that. Russian Combo Block. AK 47 WBP AKM FRONT SIGHT/GAS BLOCK COMBO (24MM AK Gas Block Front Sight Combo - Finished Rating Required Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Required AK-47. This way if you want you can get an adjustable gas block. A long and rather tedious explanation video,, but details the differences. - Gas cup is removable for servicing in the field, without tools. It's a Saiga with a CSS trigger guard, 14x1 threaded barrel, non converted frontend, and non welded trigger pin holes. com : 913633739. If you're doing a more correct conversion with a standard trigger guard riveted in place, then yes, you'll need a t-nut for the grip. Definitive Arms DAKM Lite Rail, for side mount optics. Adjustability would be nice but isn’t a requirement (will occasionally run suppressed). , and as noted the barrel extending past the GB/FSB will not be AK front sight and gas block combo assembly. I’d recommend the Toth barrel population tool and a good trunnion support. The only problem is my gas port is 45 degrees which limits my options. The ID of the sight is . This combo block offers compatibility with three popular calibers: 5. Condition New, Chrome-lined gas chamber. The windage is set using a standard AK front sight tool. 99 Read more; 9mm Short Stroke Buffer for KP-9/KR-9/Vityaz/AK-V – Rifle Dynamics $ 29. Wash hands thoroughly after handling. ø15mm ID for AKM/74/100 series barrels. What I haver found to work well on 90 or 45 degree gas block 7. Definitive Arms Custom Muzzle Device Detent Collar allows for use standard Kalashnikov muzzle devices that lock into place via a plunger pin in the front sight base. Its smaller than a #30 but really not by much. I don't know who expected clone correct from PSA, but for a $70 part that's already in the states it offers a good opportunity to use a pretty close approximation for some builds. It all started with a high definition scan of an original part from Larry Vickers, then we teamed up with Sabrewerks13 to oversee the casting Definitive Arms DAG-13 FSGB. With a East German virgin barrel you can put the port exactly where it needs to be; along with turning down the barrel, recrown When I bought my ak there was so much I didn’t know, I just knew I needed a forged Trunnion and one that was from a reputable brand, and now I really don’t like the sights that are so far forward on the barrel. As mentioned a good chamfer is helpful and I put one on all my builds. Feb 7, 2017 · -Russian Combo Gas Block-it has dimples and is pinned. The ReCreator AK12/AK15/AK19 Krinkov Combo Block is a versatile and innovative firearm accessory designed to enhance the capabilities of your AK platform rifle. If your post is not showing up click the following link. If you want a milled Krink, use a Tortort SF receiver. Produced by VS. First, have the down defender in an outside shade and run through your alignments. Reconverting/finishing the conversion is NBD, but the threaded barrel makes me want to/necessitates chopping the barrel and throwing on a combo block. 5mm RH threads, lug. 5900 at Barrel Journal. Looking for a combo gas block to go with it. 2. Parts must be inspected and tested by a qualified and competent gunsmith or armorer before use in a firearm. 7 oz. 223 into a ghetto knock off AK-19. Perfect for Pistol, SBR, and Rifle builds to lighten up the front end and give it a custom look. 5mm folding hinge, polymer stock, and latch-CAA AKSFSA Aluminum AK-100 folding buffer tube-CAA CBS Buttstock Oct 29, 2021 · 6167 posts · Joined 2015. Military Grade. Shipping $7. So i believe him. Is there a difference between a combo gas block rear sight and standard akm? Just converted to a combo and the rear sight needs to be at 600m for it to be around 200m with front sight all the way down Share Add a Comment Posted by u/DauntlessEng - 40 votes and 14 comments M90 adjustable gas block settings. Mar 13, 2011 · Re: AK-105 Gas Block/ Sight Combo?? Gas ports are definitely in different locations. Cerephim on ALFILES makes a US copy of the Bulgy. 99 Read more; KNS Precision – AK Adjustable Gas Piston DAG-13 Stand Alone Gas Block (15mm) $ 209. Occam Defense Combo Adjustable Gas Block. BACKORDER, ETA SHIPPING WEEK OF 6/24/2024. Do a AR-M52T clone. Here is our rifle before we begin working on it. 62x39mm, and 5. 99 Original price was: $129. So far, all I've seen are these two that say they would work with minor gunsmithing: https://rifledynamics This versatile combo block facilitates seamless installation and integration of various firearm accessories and gun parts, allowing you to customize your rifle to your exact specifications. Has 90* gas port and is a direct replacement for most 90* gas blocks, will work on 45* gas ports with minor gun-smithing. Material: Steel. If you modified and added a Galil receiver cover it could work. Part Number: 115. $24. Dattmunster. AK Gas Block – GBC-13 – JMac Customs $ 119. Hey dudes, I'm looking into getting some front end work done to my AKM. The gas block (left) combines the gas block and front assmebly into one unit. The block can then be inserted into a vise and locked into place, keeping your AK secure while you work on it. A lot better looking set up. Align Drill and pin. #5 · Jan 26, 2022. Come and challenge your limits, and become the champion of "Block Puzzle Battle"! PSA AK-47 45 Degree Gas Block - AK-0016. I contacted cameron tapler on IG (psa guy) with the measurement of the gas port to the edge of the combo block, and he said that was the same as the others, so not a blem. This is the more traditional look with the 12. PRODUCT DETAILS DETAILS Manufacturer: Palmetto State Armory Platform: AK-104/AK-105 Finish: Unfinished Includes: Combo Block Detent Spring Roll Pin The builder is reputable, spirit of kalash. DAG-13 combo gas block on an SLR-106. Available in both stand alone gas block and front sight gas block combo (separate listings). Align Press the combo block in. This model is intended for use with AKM, AK47, AK74, 100 Series AKs, and various other AKs that utilize 15mm ODs at the gas block journal. There may be a misunderdtanding. Customers have also purchased these items. Members Online • TRUCK_70 . $ 109. The Tunable FS/GB (front sight/gas block) features an adjustment screw on the front face of the block to either open or close off gas. I’ve put about 500 rounds through my new M90 in the last few weeks and have a couple questions about how the rifle is gassed. Chrome-lined gas chamber. Even "jokes" can result in a ban. 1-2) · AKS-74U gas tube (6P26 Sb. 32 posts · Joined 2020. Understand the rules. 95 Select options; Extended Tunable Front Sight/Gas Block Combo – Rifle Dynamics $ 160. 591" NOMINAL INSIDE DIAMETER OF BARREL BORE. Perfect for your AK-47 or AKM Rifle. Reviews (0) By popular demand we’ve added a combination front sight gas block version of our standard adjustable gas block. Retainer pin, plunger pin, and spring is already installed. If you have a SAM5 and you want a shorter barrel length since you have the bulgy CR combo. 5MM Threads, w AK Sight, Bayonet Lug. AK47 AKM AK74 PIN SET (4mm and 3mm Retainer Pins for AK Builders) Price: $5. Perfect for cleaning, service, or weapon assembly. The AK 47 gas block combines the front sight and gas block into one assembly. Installation is gonna be a bitch without the proper tools. This is designed to work with all standard 15mm gas block diameter barrels with a 45 degree gas port location. ca. Their combo block looks pretty close to the AK-19’s, so I was wondering what experience y’all have had with one? May 28, 2020 · I have a Bulgarian Front Sight Block/Gas Block Combo for sale ($250 Shipped). AK-104/AK-105 Combo Block Kit. well and my other thought was a PSA ak-e, then you could get a side folder, fn barrel and alg trigger. The Wolverine flash hider is available with either 1/2-28 or 14x1mm LH threads. 1 Review (s) Write a Review. Looks like it replaces the 45degree block and uses the fron pin hole. D. 00 Add to cart; AK104 / AK105 Combo Block Kit – Palmetto State Armory $ 69. Definitive Arms DAG-13 FSGB. 95 – $ 129. Description. Then you can use a triangle if you sbr it. DAG-13 Adjustable Gas Block for AKM/74-100, 13 Position-Definitive Arms. 62 builds is a quality 1/8 bit. Set comes with plunger pin, plunger pin spring, retainer spring, and barrel pin. VS-24 Handguard with a VS-33c gas block. But $$ and really no gain. Anti-Glare Front Serrations (FSGB Models Only) Accepts standard AK Front Sight Drums (FSGB Models Only) Billet Machined Alloy Steel. It’s the same company that makes the one you saw at the AKOU store. Crafted with precision and designed for versatility, this gas block allows you to tailor your AK's gas system to your specific needs. Are there handguard compatibility concerns with a combo block? Jul 6, 2014 · Find a wrench that is tight on the fsb and hit the wrench. 5" gas nitride barrel and a Mini Krink muzzle device Thinking about making my saiga . 62X39, *NEW*. It just depends on the builder. NOTE: If you need more than 1 unit, please email or call us for details. Suggested additional parts: AK-024 Windage Drum. Oct 7, 2010 · After they understand the concept of the combo block, line up two offensive linemen and two defenders (a down defender and a second-level defender). Sold individually. It will fit most models of the stamped AK-47 in caliber 7. WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. In Jack, the down defender is in a 1-technique. - AK AK47 Magazine Vise Block. 597 and clamps in place in the existing gas block location. But if you dont want it I'll happily take it off your hands. 99 Current price is: $109. I’m also not opposed to using the KNS piston with a non adjustable gas block. US Made, fits standard AK/AKM barrel. gov (CA Health and Safety Code Section 25249. The Russian one will not fit without turning down the barrel at that portion. When reaching out to builders, most Technical Specs: The ODIN Works Upper Combo Vice Block is the ideal tool for anyone interested doing any type of AR build. New Production. 100" taller to correctly line up the HK style rear sight. Black Oxide. Gas Block with M24x1. This is my first AK platform rifle so forgive my ignorance lol. Combo Adjustable Gas Block - Occam Defense . Made in the USA. Trying to source a front sight/gas combo block for a suppressed Saiga 104 conversion. Dec 30, 2023 · Block Puzzle Battle GAME. Works with both 45° and 90° gas ports. Fits common 0. This part was manufactured in Romania on their military production line. For more information go to - www. Check the sidebar. New; Chrome-lined gas chamber; Barrel pins not included; Fits: SAIGA, WASR, ARSENAL and other AKM mil-spec barrels (unit is 14. Out of stock. Price: $74. Imo that’d be the coolest thing to do. GBC-13 is a copy of the East German 74nk Front Sight Gas Block Combo. Designed . 95. Drum and post included already installed. A competent ak-smith will have to turn your barrel profile down to fit it. Fits Standard AK47/74 barrels. 590-. AK47 AKM AK74 3mm RETAINER PINS (Gas Block and Front Sightblock Pins. 5” barrel with 24mm threaded combo block. The Bulgarian combo is hard to find. gov (CA Health and Safety Code Section Custom finished AK-47, AKM and AK-74 stock sets by Combloc Customs. NO ETA ON WHEN I WILL HAVE THESE SORRY - SIGN UP FOR THE WAITING LIST. Our AK-100 Series Combo Blocks are machined in house from billet 4140 alloy steel and then professionally heat treated. 5mm iner diameter ) Front sight block gas block combo with 24x1. Oct 23, 2021 · 435 posts · Joined 2018. There is absolutely no buying or selling on this sub. Not all firearm parts are interchangeable; use of surplus parts without proper knowledge could cause a firearm to malfunction and cause property damage, injury or 0. Here is one, I'm afraid they are all going to be pricey! This one is from a milled rifle if it matters to you. Set comes with plunger pin, plunger pin spring, and retainer spring. 45x39mm, 7. Place the defenders in different alignments. Weight: 5. A Galil sight block will fit but it is too tall for the M70AB2 rear sight. Features a 12. Small pertrusions of the dimple is visible inside the gas block portion that slides on the barrel, is that an issue? Does that prevent it from being used?-Russian AK-100 5. Can anyone with experience with both types of AK front sight JMAC GBC-13 vs Definitive Arms DAG-13 gas blocks? Hey everyone! Will be sending my ZPAP M70 out for some work in the near future. Jan 18, 2020 · The barrel will be required to be turned down for the Russian combo block and the gas port hole does not align. (10) Weld on HK Front Sight for all your Tactical Saiga Rifles and AK47's. I prefer the sight/gas block combo. Kinda hoping K-usa makes a 104. Second, the GF-5 AK-104. NOS GENUINE RUSSIAN; Chrome-lined gas chamber; Fits: SAIGA, WASR, ARSENAL and other AKM mil-spec barrels (unit is 14. The Russian one is about a 1/4 inch rearward towards the rear gas block. The on on the left that is. Measures 0. Our billet adjustable gas block is specifically designed to be compatible with our MERC handguard, but will also work just fine on classic AKMs and AK-74s. 62x39 and is semi automatic. Get it cut tap a chisel or screw driver into the slot and spread it. Used and/or surplus parts unless stated otherwise. ø16mm ID for Yugo M70 or other 16mm GB barrels. Your Price: $249. Whether you're a gunsmith, a DIY enthusiast, or simply want to fine-tune your AK's performance, this undrilled gas block is a crucial component for personalizing your firearm. Hungarian Grade 1 Kit, Romanian Side Folder w/ Combo Block and Phantom Flash Hider. If you buy a rifle from a good builder/factory, either will be straight enough for use. AKSU KRINK GAS COMBO BLOCK. 5mm iner diameter ) The combination gas block/front sight allows the front end of the AK47/74 to be lightened up and makes the handling of the weapon noticeably more efficient. It is unfortunately a tad tacticool bubba'd. AK Vise Block AKVB comes in black and is made of durable composite. It does have some finish rubbed off the muzzle end from muzzle devices being screwed on and off, but it looks clean everywhere else - no gas marks, sight marks or install marks. For more information go to www. CAA AK-74/100 Side Folding 6 Position Telescopic Tube Sale! $ 129. - Magazine catch securely locks the receiver to the block. The front sight is adjustable for windage with a simple screwdriver. JMac Customs GBC-13-With Detent Hole. 7. - Once locked, insert block into vise block. The assembly also allows the barrel length to be shortened for you guy’s that want to SBR your AK’s. P65Warnings. Weight: 4. Romanian manufactured AKM Gas Block Most of the bolt-on trigger guards come with a provision for the grip screw, so no nut required. Price: $9. Russian made for Kalashnikov AK-104/AK-105 rifles, military specifications. . 192K subscribers in the ak47 community. AK 104. I plan on doing a front end conversion to my 106 and figured I would go with the DAG-13 adjustable combo gas block instead of getting a standard combo gas block with a kns piston because I like the idea of switching gas settings without having to remove the carrier. To set elevation, use the included Description. This Polish Gen 3 Lynx length Gas Block combo by WBP comes with all sight components (drum & sight post). $ 234. What are the pros and cons of each? Goal of this build is a lighter weight rifle than my M90. They have proven to be very reliable under combat conditions. It has been fine on my 16 and 12 inch barrel builds and I have never had to go larger. The front sight mechanically adjusts the same as a traditional/standard AK front sight. The sight comes in a black oxide finish. AK74 Style Front Sight Block, 24x1. The bullet would be passing right over that weld just before it left the muzzle. - Locks into AK mag well. We have sold thousands of these assembly's. Being the newer generation is there a huge advantage in parts, metallurgy, quality, etc in the GF5? In a perfect world, I’d prefer to switch to JMAC’s GBC-13 and rethread to 1/2x28, or 5/8x24 if there is enough material to do that. This versatile combo block facilitates seamless installation and integration of various firearm accessories and gun parts, allowing you to customize your rifle to your exact specifications while adding a stylish chrome accent. AK-208B. The Bulgarian combo block should fit. Definitive Arms Adjustable Gas Block - 13 Position. The block features a compact design and hang hole for your peg board for easy storage. The block will work with either 45 or 90 degree gas ports. 95 VIA USPS Priority / First Class Mail. AK front sight and gas block combo assembly. I do not have the detent, spring or pin. 591" gas block barrel journals. I have a saiga with a 16mm OD at the gas block, I was wondering if there are any 16mm gas block/ front sight combos. Available in both stand alone Gas Block and Front Sight Gas Block combo (separate listings). NOTE: Works with AKM Barrels. Definitive Arms DAG-13 SAGB. This does have a Detent Hole in the Front. I broke the rifle in on setting two, and ran the rest of the 500 rounds on setting one. Rather than using the usual set screw, this design utilizes a gas cup with multiple aperture sizes around the rim. You can also take a dremel tool and cut thru the bottom of the gas black it will just fall off. This block locks into the mag well of the AK just as a magazine would. Made by WBP. 13 Indexable Gas Settings including Gas Shut Off. . The combination gas block/front sight allows the front end of the AK47/74 to be lightened up and makes the handling of the weapon noticeably more efficient. 5 mm right-hand threads. I'm talking about an AK with two FSBs, the combo block at the gas port and a standard FSB at the muzzle, the standard having been cut down to its base so that it only serves to retain the muzzle device and hold the cleaning rod. kj bk kj vm en ch dp rk jl ze