Barrel: 16.. AR-15 5.56/.223 16" M4 PREDATOR 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 Chamber: 5.56 (acce.. AR-15 5.56/.223 16" BULL UPPER ASSEMBLY / 15" KEYMOD RAIL IN RED. Chambered in 5.56 nato (also accepts .223 rounds). Handle, 7.5" Barrel, M-LOK Handguard Buyer's Club $242.99 Non-Member $269.99 Item is currently on backorder Hand red coated with stainless flutes. This AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. Hardened to 26-32 rc and stress relieved. I can't find anything to complain about. Twist Rate: 1/8 button rifled*  Gas System: Carbine Length Gas System Barrel is exclusively designed for Moriarti Armaments - black nitride plated with stainless steel diamond flutes.Barrel - 16" 416 stainless steel hbar contour barrel with black diamond fluting. 16 Straight Fluted Rainbow PVD Oilslick 223 Wylde ss Ar15 Barrel: 16" .223 Wylde 1:9 Stainless Diamond Fluted Ar15 Barrel: $395.58. CA and NY compliant.Action: Semi-auto 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. Hardened to 26-32 rc and stress releived. It is built around a 16 inch, stainless steel spiral fluted barrel that is chambered in.223 WYLDE. 15" M-LOK Rail. Faxon Firearms AR-15 10.5" Gov't/Socom 5.56 Carbine-Length 4150 Barrel QPQ Coated This item is currently on order Button rifled. .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. CA and NY compliant.Action: Semi-auto Barrel - 16" 416 stainless steel hbar contour barrel. Gas System: Carbine Length Gas System Barrel - 16" 416 stainless steel hbar gov. $212.89 (4) $395.58. If you think every rifle has to have BUIS, maybe look at the model that has a Pic rail on the gas block. 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. Current ETA: 4-6 weeksBarrel - 16" 416R stainless steel hbar contour barrel. Chambered in 5.56 nato (also accepts .223 rounds). $382.34. We ship across USA.Action: Semi-auto $499.99. Chambered for.223 and 5.56 rounds, this 16-inch AR-15 barrel features M4-style feed ramps that help ensure a smooth feed and prevent jams. Very nice upper. Muzzle Device: 1/2X28 Knurled 3 port Muzzle Brake In the "pro" column, it's easy to grip, looks super and keeps me from getting burned. Davidson Defense "Ranx" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled) $574.99 $289.99 Sale In Stock. .750 under gas block. 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. Chamber: 5.56 NATO (shoots both, 5.56 and 2.23 rem) Chamber: 5.56 NATO Check out our options for Barrels 5.56, .223 and .223 Wylde. Forward assist and dust cover installed. I don't like to run a ton of gear on every gun. Our foundation is built on excellent customer service, … Arm or Ally© teamed with three very strong barrel manufacturers to offer the finest AR barrels on the market. Hardened to 26-32 rc and stress relieved. We stock a huge selection of barrels … 1-8 rh twist. Current ETA: 4-6 weeksBarrel - 16" 416R stainless steel hbar contour barrel. 1-8 rh twist.Barrel - 16" 416 stainless steel gov. Twist Rate: 1/8* We are committed to providing every customer with "Quality Parts at Reasonable Prices!" AR-15 5.56/.223 Wylde 16" M-Lok Handguard Upper Assembly, Side Charger. 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 16in .223 Wylde Fluted Barrel Complete Upper Receiver $544.99 (Save $44.70) $500.29 16 models Radian Weapons Model 1 .223 Wylde Complete Upper Receiver w/ KeyMount … MAS Defense is a AR-15, AR-10 and Glock parts store. JSE Surplus is located in Cape Girardeau and ships to any location in the US. Gas System: Carbine Length Gas System I've never bought an assembled upper (or a complete AR) until now. 3 models Aero Precision M4E1 Threaded .223 Wylde Fluted Barrel w/ ATLAS S-ONE Handguard Complete Upper Receiver (5) As Low As (Save Up to $48.40) $523.19 Best Rated Criterion Barrels AR-15 Bull Rifle Gas System Barrel … CA/NY compliant. Worth the wait. Created b... AR-15 5.56/.223 16" M4 BLUE UPPER ASSEMBLY W/CUSTOM BRAKE. 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. .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. .. AR-15 5.56/.223 16" stainless steel x-treme fluted tactical bull up... AR-15 5.56/.223 Wylde 16" M-Lok Handguard Upper Assembly, Side Charger. Chamber: .223 Wylde (5.56 NATO/.223 REM) 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. Contour barrel. Can not build for less ! AR-15 300 Blk 5.5" Minimalist Series Semi Auto Pistol | EPT PDW Adj... AR-15 upper assembly, 16" stainless steel barrel, mid-length slim keymod rail, LH Side Charger. UPPER FEATURES: 1-9 rh twist 6 groove button rifled. 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.