300 BLK 13.9" upper, pin and weld optional
Select BCG add on option for discounted chrome lined phosphate BCG
These are first come first serve like usual WWIII blowout products
• Barrel Length- 13.9” (16" OAL with pinned muzzle device)
• Barrel Material- 41V50 Button Rifled Barrel
• Chamber 300 Blackout
• Twist Rate 1:7 5R
• Muzzle Device- Choose from list
• Extension- M4
• Gas System- Carbine
• Gas Block- Low profile .750 Phosphate Finish
• Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
• Handguard- 13" High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut
Like all uppers we build, these are assembled and test fired to ensure function, if you add a BCG on from this product page, the upper will be test fired with that BCG like our complete uppers are tested, if you opt out of a BCG, the upper will still be test fired
