Operating System: PWS Long Stroke Piston System, 3-Setting Adjustable Gas System
Muzzle Device: A2 Flash Hider
Caliber: .223 Wylde
Barrel Length: 11.85”
Barrel: 416 Stainless Steel, Button Rifled
Handguard: PWS free float Mlok™11” Handguard (1.6” width, 2.1” height)
Upper Receiver: PWS Proprietary Piston Upper, 6061 extrusion, Anodized
Charging Handle: Radian Raptor™Ambidextrous Charging Handle
Overall Length: 20.5”
Weight: 4 lbs. 2 oz.
The MK1 PRO upper will not work with a lower that has extended bolt catch/bolt releases that extends over the upper receiver- like the Phase 5 or B.A.D. style.
We are looking to make a change to the tech data package in the future to accommodate this, but at this time it has not been modified.