Ruggeds piston uses a non-slotted design creating a full circumference gas seal. This drastically lowers gas blowback for a more enjoyable shooting experience. Machined from 17-4 Stainless Steel and heat treated this piston is built to last.

Features :

• Machined from 17-4 Stainless Steel
• M16x1 LH Piston is NOT compatible with Kriss Vector Firearm Hosts