... 16" .223 Wylde 1:8 Mid-Length 4150 Lightweight Pencil Barrel: 16" Stainless 300 AAC Blackout 1:8 Socom Ar15 Threaded Barrel: $276.50. Gas System: Carbine Length Gas System specs. The upper receiver features:Barrel - 16" 416 stainless steel bull contour barrel with black diamond fluting. Out of stock. CA and NY compliant.Action: Semi-auto Hardened to 26-32 rc and stress relieved. Your one-stop shop for everything AR! Add to Wishlist + Out of stock. CA and NY compliant.Action: Semi-autoGas System: Pistol Length Gas SystemChamber: 300 BlackoutTwist Rate: 1/8 button rifledBarrel: 16" heavy barrel, 4150V steel, chrome moly, heat treated, black, M4 .. AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY&nbs... AR-15 5.56/.223  16" M4 "BLACK SHARK" UPPER ASSEMBLY. Barrel: 16" heavy profile, 4150V steel, chrome moly, heat treated, black, M4 feedramps, .750 gas block diameter.Gas System: Carbine Length Gas System Barrel: 16" M4 hbar contour, 4150V ste.. AR-15 5.56/.223 16" M4 SLIM KEYMOD UPPER ASSEMBLY FEATURES:Action:&... AR-15 5.56/.223 16" STAINLESS STEEL PREMIUM QUAD UPPER ASSEMBLY FEATURES:Action: Semi-auto Twist Rate: 1/8 button rifled Barrel - 16" 416 stainless steel bull barrel with straight nitride fluting. ... AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY - FDEAction: Semi-auto RGuns. Chambered in 5.56 nato (also accepts .223 rounds). Spike's Tactical .22LR Upper Lightweight Pencil Barrel - It's Finally Here, The Lightweight ST-22! M16A2 upper receiver stripped $129.00. Chambered in 5.56 nato (also accepts .223 rounds). Cham.. AR-15 5.56/.223 16" red diamond modular bull upper assembly is offe... AR-15 5.56/.223 16" SABRE DEFENCE MID-LENGTH GOVERNMENT PROFILE UPPER ASSEMBLY INCLUDES ALL ORIGINAL SABRE DEFENCE PRODUCTS. Specifics:Barrel:&nb.. AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY - FDEActi... AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY  - OD GREEN RAILAction: Semi-auto Hardened to 26-32 rc and stress relieved. Twist Rate: 1/8 button rifled* in .223 Wylde, accepts both 5.56 and .223 .. AR-15 upper assembly, 16" stainless steel barrel, mid-length slim k... AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY . UPPER FEATURES: They add their 13" Carbon Fiber wrapped M-Lok handguard, Gunner Lightweight BCG, enhanced forged upper receiver, and multi-position gas block to make this the ultimate lightweight upper you can trust to last. Handguards - YHM 12.5" rifle length diamond series forearm. Hardened to 26-32 rc and stress relieved. Add to Wish List Compare Product. Chamber: 5.56 NATO (accepts both 5.56 NATO and .223 REM) Barrel - 16" 416 stainless steel hbar gov. NEW PRODUCTS 22LR AR Conversion Kit, Mk57, w/3 Magazines, 25rd $229.95 ADD TO CART Streamlight, ProTac Railmount HL X (1,000 Lumens) $209.95 ADD TO CART MicroStream USB, Black $49.95 ADD TO CART ProTac 1L-1AA, Black $69.95 ADD TO CART AR15 CALIBER CONVERSIONS Upper Group Kit, Banshee™ 300, Mk57, 5.7 x 28mm, 3 40 Rd Mags … Muzzle Device: Thread 1/2X28 6" mock muzzle brake flush mount shroud (the can add.. AR-15 5.56/.223 16" M4 "BLACK CANON" UPPER ASSEMBLY. This "Pencil" profile Chrome lined barrel is the same size and finish as the original AR-15, XM16E1, M16 and M16A1 models. Button ri.. AR-15 5.56/.223 16" STAINLESS STEEL BLACK "GOLF BALL" UPPER ASSEMBL... AR-15 5.56/.223 16" stainless steel diamond pulse fluted tactical bull upper assembly. This "Pencil" profile Chrome lined barrel is the same size and finish as the original AR-15, XM16E1, ... M16A2 upper receiver stripped. Chamber: 5.56 NATO/ .223 Wylde (either accepts 5.56 NATO/.223 REM rounds) We carry a large line of DPMS, Magpul, Yankee Hill, Command Arms CAA, Leapers, UTG, AccuShot, NC Star, Rock River Arms, SunDevil, Tactical Solutions, Grizzly, Stag Arms, DTI Del-Ton Inc and many others. Barrel: 16" M4 .. AR-15 5.56/.223 16" M4 BLUE UPPER ASSEMBLY W/CUSTOM BRAKE. Muzzle Device: Thread 1/2 X28  muzzle brake   Barrel: 16.. AR-15 5.56/.223 16" M4 PREDATOR UPPER ASSEMBLY. AR10 .308 Upper by CBC Industries. Hardened to 26-32 rc and stress relieved. C... AR-15 5.56/.223 16" Diamond "Predator" Upper Assembly. Aero Precision AR-15 Complete Upper, 16″ 5.56 Carbine Barrel with Pinned FSB & M4 Handguard $ 324.99. .750 under gas b.. AR-15 5.56/.223 16" slick side diamond stainless steel upper assemb... AR-15 5.56/.223 16" STAINLESS STEEL "GOLF BALL" UPPER ASSEMBLY INCLUDES:Barrel - 16" 416r stainless steel hbar contour barrel, stainless steel fluted. Sign up for our newsletter to receive updates and exclusive offers, Copyright © 2020 - Ballistic Advantage - All Rights Reserved. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Chamber: 5.56 NATO/.223 Wylde Chamber: 5.56 (acce.. AR-15 5.56/.223 16" BULL UPPER ASSEMBLY / 15" KEYMOD RAIL IN RED. … Chambered in 5.56 nato 1-9 rh twist. Chambered in .223 WYLDE, 1-8 rh twist. Hardened to 26-32 rc and stress relieved. Twist Rate: 1/9* button rifled Comes completed with BCG.Barrel - 16" 416R stainless steel hbar  barrel. Muzzle Device: 1/2X28 Knurled 3 port Muzzle Brake 1-7 rh twist. CA a... AR-15 5.56/.223 16" M4 PREDATOR UPPER ASSEMBLY. Twist Rate: 1/8 button rifled*  1-9 rh twist. M4E1 Threaded 14.7" 5.56 Pencil Complete Upper Receiver w/ ATLAS R … Gas System: Carbine Length Gas System Contour barrel. CA and NY compliant.Action: Semi-auto ** THIS KIT DOES NOT INCLUDE BOLT CARRIER GROUP **** KITS CANNOT BE CHANGED, NO MODIFICATIONS WILL BE ACCEPTED ** AR-15 Ultra Slim Keymod Handguard V2 W/Steel Barrel Nut 15" BCA 16" .223 Wylde Stainless Steel Barrel | Made in U.S.A. AR-15 .223 A2 Stainless Steel Birdcage .. Upper Specs-- Forged Mil-Spec M4 flat top upper receiver w/Mil-Spec Type III hardcoat finish - 16" GM 1x16 Twist Chromoly Barrel, Lightweight profile under the handguard w/Carbine length sight radius - M4 handguards w/Round handguard cap ... AR-10 UPPER - .308 WIN -20 Inch Barrel with 15" HERA Handguard AR15 Uppers. ... BKF M4 MOD-1 16″ 5.56 Nato Mid Length Nitrided Pencil Barrel W/ 13″ M-LOK Handguard (BKF) $ 499.99. Forward assist and dust cover installed. Under gun control act of 1986, federal firearms license is not required for 80% products. Butt.. AR-15 5.56/.223 16" mid-length samson evolution keymod upper assemb... AR-15 5.56/.223 16" M4 MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SHROUD Faxon started out in the aerospace manufacturing business so they know their stuff. Created ... AR-15 16" 5.56/.223 M4 MLOK UPPER ASSEMBLYAction: Semi-auto * Button rifled. Forward assist and dust cover installed. Created by Moriarti Armaments. Barrel: 16" heavy barre.. AR-15 5.56/.223 16" Diamond "Predator" Upper Assembly. 1/2-28 thr.. AR-15  5.56/.223 16" stainless steel straight fluted tactical ... AR-15 5.56/.223 16" stainless steel tactical bull upper assembly includes:Barrel - 16" 416 stainless steel bull barrel. CA and NY compliant.Barrel - 16" 416 stainless steel diamond pulse fluted bull contour barrel. Lightweight (also called pencil) barrels are easier to carry around. AR-15 Complete Uppers; Rifle Triggers; Bolt Parts; Slings & Sling Swivels; Swivels & Studs; Shop All 20 in Del-Ton Customer Favorites. Black hardcoat anodized to gov. .750 under gas block. Hardened to 26-32 rc and stress relieved. And all their barrels are made in-house…”cradle to grave” as they call it. 1-9 rh twist 6 groove button rifled. S.. AR-15 .223/5.56 16"  stainless steel fluted samson evo keymod ... AR-15 5.56/.22 YHM Style 16" Diamond Fluted Chrome Moly Upper Assembly. Gas System: Carbine Length Gas System Barrel i... AR-15 5.56/.223 16" diamond fluted stainless steel tactical upper is a perfect upgrade to your AR-15 Rifle. 1-9 rh twist. Chambered I reviewed a previous barrel…their 14.5″ pencilwith a permanently attached muzzle device in my ultimate lightweight build. Relieved. AR-15 5.56/.223 16" stainless steel pencil lightweight upper assembly features:A3 flat top upper reciever - Made from certified 7075-T6 aluminum forgings. We have factory direct pricing on everything you need for your AR-15, AR-10, and AR-9 including complete upper assemblies, lower assemblies, barrels, BCGs, bolts, and we also manufacture Glock and 1911 barrels. Hardened to 26-32 rc and stress relieved. Twist Rate: 1/9 button rifled* .936 under gas block. Specifics:A3  flat top upper reciever - made from certified 7075-t6 aluminum forgings. Out of stock. We try to keep all varieties in stock. Chambered in 5.56 nato (also accept.. AR-15 5.56/.223 16" black diamond modular bull upper assembly is of... AR-15 5.56/.223 16" black diamond tactical upper assembly. Barrel:&nbs.. AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY... AR-15 5.56/.223 16" M4 RED "PINEAPPLE" UPPER ASSEMBLY. M4E1 Enhanced 14.7" 5.56 Mid Pencil Barrel Complete Upper Receiver. Muzzle Device: Thread 1/2 X28 Compact Muzzle Brake Includes:AR-15 Snap RingAR-15 Delta RingAR-15 Weld Spring Rating: 100%. Chambered in 5.56 nato (also accepts .223 rounds). Simply push the 2 lower pins out and install the new upper and you are ready to rock & roll! Button rifled, 6 Grooves. Heat Treated to RC 28-32 Hardness, and Stress The upper is complete with BCG. Target crown.. AR-15 5.56/.223 16" stainless steel tactical bull upper assembly in... AR-15 5.56/.223 16" stainless steel x-treme fluted tactical bull upper assembly includes:Barrel - 16" 416 stainless steel bull contour barrel with x-treme fluting. Gas System: Carbine Length Gas System Customizable Ar15 Uppers, Parts, & More! Chambered in 5.56 nato 1-9 rh twist. .750 d.. AR-15 5.56/.223 16" stainless steel spiral fluted tactical upper as... AR-15  5.56/.223 16" stainless steel straight fluted tactical upper assembly. Del-Ton Delta Ring Assembly AR-15 Aluminum Matte Our price was $11.99 now $8.50 Our Price: $ 11.99 $ 8.50 You Save $3.49. We are Type 07 and 08 FFL, manufacturer and importer of firearms, except destructive devices. Chamber: .223 Wylde (shoots both, 5.56 and .223 Rem) Created by M... AR-15 5.56/.223 16" M4  BARRETT STYLE UPPER ASSEMBLY / FDE. Muzzle Device: Thread 1/2 X28 A2 Flash Hider     Hardened to 26-32 rc and stress releived. Whether you want a 16-inch heavy profile barrel or a lightweight 20-inch barrel, Del-Ton has the barrels … barrel. AR-15 Uppers Palmetto State Armory offers a great selection of AR-15 barreled upper assemblies. Current ETA: 4-6 weeksBarrel - 16" 416R stainless steel hbar contour barrel. Chambered in 5.56 nato (also accepts .223 rounds). Hardened to 26-32 rc and stress relieved.&.. AR-15 5.56/.223 16" black diamond tactical upper assembly. Hardened to 26-32 rc and stress releived. We ship ... AR-15 5.56/.223 16" BULL UPPER ASSEMBLY / 15" KEYMOD RAIL IN RED. Browse our site to custom design your AR-15 upper with great deals and millions of configurations. 16" .223 Wylde 1:8 Mid-Length 4150 Lightweight Pencil Barrel 16" .223 Wylde 1:8 Stainless Diamond Fluted Ar15 Barrel 16" .223 Wylde 1:8 Stainless Spiral Fluted Ar15 Barrel CA and NY compliant.Action: Semi-auto You are here: Home > AR Parts > AR-15 Parts > AR-15 Upper Parts > AR-15 Barrels Choose a sub category: 5.56/223 AR-15 Barrels ... Faxon Firearms AR-15 16" Pencil 223 Wylde Barrel Mid-Length 416-R 5R Rifling QPQ This item is currently on order MSRP: $225.00 . Their upper is barreled with a 14.5" pencil barrel and a SLIM 3-port muzzle brake that's been permanently attached. Hardened to 26-32 rc and stress re.. AR-15 5.56/.223 16" diamond fluted stainless steel tactical up... AR-15 5.56/.223 16" mid-length samson evolution keymod upper assembly, designed exclusively by Moriarti Armaments. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. It passed with flying colors for something super light and short (full review) but does cost about $100 more. Twist Rate: 1/9* However, they don’t have the durability of others. 1 Review. contour barrel, nitride coated. .750 under gas blo.. AR-15 .223 WYLDE 16" STAINLESS BLACK CLAW PREMIUM KEYMOD UPPER ASSE... AR-15 .223/5.56 16"  stainless steel fluted samson evo keymod bull upper assembly. Created by Moriarti Armaments. Gas System: Carbine Length Gas System Able to accommodate both .223 Rem and 5.56 NATO ammunition, Criterion .223 Wylde barrels are designed for both precision performance and hard use reliability. CA and NY compliantAction: Semi-autoGas System: Carbine Length Gas SystemChamber: 5.56 NATO (shoots both 5.56 NATO and .223 Rem)Twist Rate: 1/8*Muzzle Device: Slip over barrel shroud with multi port muzzle brak.. AR-15 5.56/.223 16" M4 MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SH... AR-15 5.56/.223 16" red diamond modular bull upper assembly is offered exclusively by Moriarti Armaments. We specialize in all military surplus weapons from AK-47s, AR-15s, Mausers, CETME, Enfields, UZIs, and much more! Complete uppers are headspace checked and test fired. Chamber: .223 Wylde (5.56 NATO/.223.. AR-15 5.56/.223 16" STAINLESS STEEL PREMIUM QUAD UPPER ASSEMBLY FEA... AR-15 .223 WYLDE 16" STAINLESS BLACK CLAW PREMIUM KEYMOD UPPER ASSEMBLY. At Davidson Defense we carry a vast selection of quality AR-15 Complete Upper Receivers and AR-15 Build Kits at the best prices found online. Out of stock. Barrel: 16" M4 contour, 4150V steel, chrome moly, heat treated, black, M4 feedramps, .750 gas block diameter.Gas System: Carbine Length Gas System Made from aircraft quality aluminum and black hardcoat anodized.Barrel - 16" YHM nitride (black) chrome lined barrel, 1/2 x 28&n.. AR-15 5.56/.22 YHM Style 16" Diamond Fluted Chrome M... AR-15 5.56/.223 "Eagle Claw" 16" stainless fluted tactical bull upper assembly. Chamber: 5.56 NATO/.223 Wylde Forward assist and dust cover installed. Barrel: 16" M4 contour, 4150V steel, chrome moly, hea.. AR-15 5.56/.223 16" M4  BARRETT STYLE UPPER ASSEMBLY / FDE. Aero Precision M4E1-T Complete Upper, 10.5″ 5.56 Barrel, 9″ M-LOK ATLAS S-ONE HG – Anodized $ 434.99. Black hardcoat anodized and teflon coated to gov. Gas System: Carbine Length Gas System The new handguard PLUSthe regul… Its light weight makes it perfect for hunting or target shooting. Barrel: 16" M4 contour, 416r cold rolled steel, stainless steel finish, M4 feedramps, .750 gas block diameterGas System: Carbine Length Gas System Add to Wish List Compare Product. CA compliant. Button rifled. If you are looking for a Military quality Pencil profile 20" barrel for your Retro build.. or want a Light Weight Barrel for your modern build then this is one of the nicest barrels available. But wait…didn’t I say that I recommend getting the regular barrelone? Created by Moriarti Armaments. M4 feedramps.Barrel - 16" 416 stainless steel pencil/lightwe.. Chambered in 5.56 nato (also accepts .223 rounds)... AR-15 5.56/.223 "Eagle Claw" 16" stainless fluted tactical bull up... AR-15 5.56/.223 16" black diamond modular bull upper assembly is offered exclusively by Moriarti Armaments. specs. Chambered in .223 Wylde (accepts both rounds, 5.56 and .223). We ship across USA.Action: Semi-auto The AR15 Rifle modular design allows you to easily switch out the upper and change calibers or configurations. CA and NY compliant.Action: Semi-auto Upper receiver features:Barrel - 16" M4 contour Chambered in 5.56 nato (also accepts .223 rounds)*. Whether you are a gun enthusiast or a beginner, we have plenty of options from different barrel lengths, calibers, gas systems, handguards, & rails to choose from … Faxon 16" Pencil Profile AR15 Barrel, 5.56 Nato, Nitrided Rating Required Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name CA and NY compliant.Action: Semi-auto Shop our AR Complete Uppers and choose your barrel and additional add-ons only on BalisticAdvantage.com! Button rifled. Twist Rate: 1/8* Exclusively designed by Moriarti Armaments. Out of stock. Action: Semi-auto Out of stock. We set ourselves apart by supplying unique parts at a good value and standing by our products by offering outstanding customer service. Luth AR 16″ 5.56nato Lightweight Barrel Complete Upper Receiver W- BCG and CH $ 399.95. Rating: 100%. For the best experience on our site, be sure to turn on Javascript in your browser. Chamber: 5.56 NATO/.223 Wylde Chambered in 5.56 nato (also accepts .223 rounds). 20'' AR15 Standard Upper Half, Government Profile Barrel, 5.56 NATO, chrome lined chamber & bore, 1-7 twist, A2 flashider: $380.00 Twist Rate: 1/8 button rifled.. AR-15 5.56/.223 16" M4 RED "PINEAPPLE" UPPER ASSEMBLY. Chamber: 5.56 NATO For the best experience on our site, be sure to turn on Javascript in your browser. 20" Pencil Barrel - AR-15 / XM16E1 / M16 / M16A1 . M4 feedramps.Barrel - 16" 416 stainless steel pencil/lightwe.. AR-15 5.56/.223 16" stainless steel pencil lightweight upper assemb... AR-15 5.56/.223 16" stainless steel spiral fluted tactical upper assembly features:Barrel - 16" 416 stainless steel hbar contour barrel with x-treme fluting. Add to Cart. If the one of the barrel choices is not in stock we will build your upper receiver with one of the barrels in stock and notify you. Please consult, Complete Bolt Carriers, Bolts and Charging Handles, Bolt Carriers, Bolts and Charging Handles, AR-15 300 BLK 5.5" Moriarti Minimalist Series Semi Auto Pistol | EPT PDW, AR-15 .223 WYLDE 16" TACTICAL SLIM UPPER ASSEMBLY, LEFT HANDED SIDE CHARGER, AR-15 300 AAC Blackout 16" Carbine "BLACK CANON" UPPER ASSEMBLY, AR-15 5.56/.223 16" M4 "BLACK SHARK" UPPER ASSEMBLY, AR-15 5.56/.223 16" BULL UPPER ASSEMBLY / 15" KEYMOD RAIL IN RED, AR-15 5.56/.223 16" Diamond "Predator" Upper Assembly, AR-15 5.56/.223 16" M4 BARRETT STYLE UPPER ASSEMBLY / FDE, AR-15 5.56/.223 16" M4 "BLACK CANON" UPPER ASSEMBLY, AR-15 5.56/.223 16" M4 "PREDATOR" UPPER ASSEMBLY, AR-15 5.56/.223 16" M4 BLUE UPPER ASSEMBLY W/CUSTOM BRAKE, AR-15 5.56/.223 16" M4 LONG MLOK UPPER ASSEMBLY, AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY - FDE, AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY - OD GREEN, AR-15 5.56/.223 16" M4 RED "PINEAPPLE" UPPER ASSEMBLY, AR-15 5.56/.223 16" M4 SLIM KEYMOD UPPER ASSEMBLY W/12" FREE FLOAT, AR-15 5.56/.223 16" STAINLESS STEEL PREMIUM QUAD UPPER ASSEMBLY, AR-15 .223 WYLDE 16" STAINLESS BLACK CLAW PREMIUM KEYMOD UPPER ASSEMBLY, AR-15 .223/5.56 16" stainless steel fluted samson evo keymod bull upper assembly, AR-15 5.56/.22 YHM Style 16" Diamond Fluted Chrome Moly Upper Assembly, AR-15 5.56/.223 "Eagle Claw" 16" stainless fluted tactical bull upper assembly, AR-15 5.56/.223 16" black diamond modular bull upper assembly, AR-15 5.56/.223 16" black diamond tactical upper assembly, AR-15 5.56/.223 16" diamond fluted stainless steel tactical upper, AR-15 5.56/.223 16" mid-length samson evolution keymod upper assembly, AR-15 5.56/.223 16" MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SHROUD, AR-15 5.56/.223 16" red diamond modular bull upper assembly, AR-15 5.56/.223 16" SABRE DEFENCE MOE GOVERNMENT PROFILE UPPER ASSEMBLY, AR-15 5.56/.223 16" slick side diamond stainless steel upper assembly, AR-15 5.56/.223 16" STAINLESS STEEL "GOLF BALL" UPPER ASSEMBLY, AR-15 5.56/.223 16" STAINLESS STEEL BLACK "GOLF BALL" UPPER ASSEMBLY, AR-15 5.56/.223 16" stainless steel diamond pulse fluted tactical bull upper assembly, AR-15 5.56/.223 16" stainless steel pencil lightweight upper assembly, AR-15 5.56/.223 16" stainless steel spiral fluted upper assembly, AR-15 5.56/.223 16" stainless steel straight fluted tactical upper assembly, AR-15 5.56/.223 16" stainless steel tactical bull upper assembly, AR-15 5.56/.223 16" stainless steel x-treme fluted tactical bull upper assembly, AR-15 5.56/.223 Wylde 16" M-Lok Handguard Upper Assembly, Side Charger, Firearms - Frequently Asked Questions - firearms technology | atf, Moriarti Armaments LLC, All rights reserved worldwide. SABRE DEFENCE 16" 4150 CMV 5.56 NATO 1-9 TWIST GOVERNMENT PROFILE BARREL WITH FEEDRAMPSSABRE DEFENCE 7075-T6 FORGED FLAT TOP T-MARKE.. AR-15 5.56/.223 16" SABRE DEFENCE MID-LENGTH GOVERNMENT PROFILE UPP... AR-15 5.56/.223 16" slick side diamond stainless steel upper assembly. .750 under gas block. Sale Price: $213.75 Parkerized finish .750 under gas block, carbine gas system.