Got a couple of the WOLF Gas Piston Uppers, which are based on the Taiwan Military T91. Drops on standard AR lower.
Has FA compatible bolt carrier. Neat set up. Sold plus actual shipping by USPS Priority. Thanks
SPECIFICATIONS:
Short Stroke Piston System
Hammer Forged Barrel (5.56 NATO)
One Piece Bolt Carrier
1-7 Twist Rate
Flash Suppressor
Proprietary RAPID CLEAN One-Piece Piston System
Authentic T91 Hand Guard
Authentic T91 Charging Handle
NO REAR SIGHT INCLUDED