Out of stock $569.99 Aero M4E1, AR15 Complete Upper, 300 Blackout, 8" Barrel, 1:7 Twist, 7" MLOK Handguard, Pistol Length Gas System, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Charging Handle APAR640212M1
Out of stock $899.00 Sons Of Liberty Gun Works M4-89 Complete Upper, 300 Blackout, 9" Combat Barrel, 1:7" Twist, QPQ Finish, Black, 8" M89 M-LOK Handguard, A2 Flash Hider M489UPPER-9-300
Out of stock $855.00 Sons Of Liberty Gun Works M4-89 Complete Upper, 300 Blackout, 16" Combat Barrel, 1:7" Twist, QPQ Finish, Black, 15" M89 M-LOK Handguard, A2 Flash Hider M489UPPER-16-300
Out of stock $1,085.00 PWS MK109 MOD 2-M, Upper Receiver, Fits AR-15, 300 Blackout, 9.75" Barrel, 1:8" Twist, PWS Triad Muzzle Device, 8.9" PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle 18-M109UB0B
Out of stock $1,299.95 PWS MK109, MOD 2-M, Upper Receiver, Fits AR-15, 300 Blackout, 9.75" Barrel, 1:8" Twist, PWS Triad Muzzle Device, 8.9" PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle 18-2M109UB0B
Out of stock $1,640.00 SIG MCX Rattler Upper, 300 Blackout, 5.5" Barrel, M-Lok Handguard, Black Finish UAMCX-5B-300-BLK-TAP
Out of stock $799.00 2A Armament Palouse-Lite, 8" 300 Blackout M-LOK Complete Upper, AR15, Black Finish 2A-FCU300ML7BLK-1
Out of stock $358.00 Spike's Tactical Barrel, 300 AAC Blackout, 16" Barrel, 1:7 Twist, Medium Profile Chromed Bore and Chamber SB31605-MP
Out of stock $348.00 Spike's Tactical Barrel, 300 AAC Blackout, 10" Barrel, 1:7 Twist, Chrome Lined, M4 Barrel Extension SB31003-MP
Out of stock $546.00 Sig Caliber Exchange Kit, Upper, 300 Blackout, 6.75", Black, Tapered Lug, Fits Sig MCX CALX-MCX-6B-300-TAP
Out of stock $558.00 Sig 300 Blackout, 16", Black, Caliber X-Change Kit, Sig MCX SGCALX-MCX-16B-300-TAP
Out of stock $930.00 Seekins SBR Billet Upper, 300 Blackout, 8" Barrel, Black Finish, MCSR Rail, Includes BCG and Charging Handle 11100057
