10.5 inch AR-15 12.7x42 (50 Beowulf) Pistol M-LOK Upper Complete Kit

All our uppers are carefully assembled and tested and ready to go out of the box. Every component is chosen to ensure a high quality upper is produced. Every upper is custom built to order and we go the extra mile to ensure the finished product is to your specifications.This 12.7x42 upper kit starts with an AR-15 BIG BORE MILSPEC 7075 T6 Forged Aluminum receiver, mated to a BCA 10.5 inch 12.7x42 (50 Beowulf), Pistol Length Gas System, 1:20 Twist, Heavy Profile, Parkerized Barrel. The Axis Rail is a free floated system, M-LOK slots on all three sides, full length picatinny rail at the top, lightweight handguard. Barrel Nut is made out of solid steel to ensure a solid mounting system.Bolt Carrier Group and Charging Handle is included. Kit comes with everything to turn your stripped lower into a complete pistol. SB Tactical SBA3 Adjustable Brace is OPTIONAL. Features a minimalist design, integral and ambidextrous QD Sling socket and capable of accepting milspec carbine buffer tube extensions.We can also UPGRADE the TRIGGER to a Rise Armament RAVE 140 or a Timney Impact Trigger. Great option if you are looking for a lighter and more crisp trigger pull.Also an OPTION is COLOR. We can change the receiver and handguard to FDE (FLAT DARK EARTH) COLOR (see pictures).NOTE: We recommend E-LANDER 50 Beowulf Magazines for this caliber.SPECIFICATIONSUPPER RECEIVER: AR-15 BIG BORE Mil-Spec Machined out of 7075-T6 Forged Aluminum, Single Large Feed Ramp, Type III Hardcoat Anodized Black with Forward Assist and Ejection Port Cover InstalledBARREL: 10.5 inch, 12.7x42 (50 Beowulf) Caliber, 4150 Chrome Moly Vanadium Steel, 1:20 Twist, Heavy Profile, Parkerized - made by BCAHANDGUARD: 9 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum - made by Axis MFGGAS SYSTEM: Pistol Length, Direct Impingement, Stainless Steel TubeGAS BLOCK: Low Profile Gas Block, Machined out of 4140 SteelMUZZLE DEVICE: Competition Muzzle Brake Black (49/64-20) with Crush WasherBOLT CARRIER GROUP: 12.7x42 Caliber, M16 Profile, Mil-Spec, MP Tested, Nitride Treated, Properly Staked Gas Key, 8620 Steel Carrier, 9310 Steel BoltCHARGING HANDLE: Standard Charging HandleLOWER PARTS: UNBRANDED AR ELG Lower Parts KitBLADE/BRACE: AR-15 Stabilizing Fin/Blade Kit - includes stabilizing fin/blade, standard buffer spring, 3oz buffer, castle nut, latch plate and pistol buffer tube.100% MADE IN THE USAOPTIONAL: UPGRADE BLADE to a SB Tactical SBA3 Adjustable BraceOPTIONAL: UPGRADE TRIGGER to a Rise Armament RAVE 140 or a Timney Impact TriggerOPTIONAL: COLOR Change to an Aero Precision XL FDE Colored Receiver and 10 inch M-LOK Magpul FDE Colored Handguard