Hephaestus High Performance CNC Aluminum Piston Head For Krytac Kriss Vector GBB SMG g Durable and light weight

Durable and light weight

LOWER FRAME & GRIP / CNC treatment / Hard Anodized Finish

HISTORY  The M4 carbine is a family of firearms tracing its lineage back to earlier carbine versions of the M16

Not to mention it includes a tri-lug to 14mm CCW adaptor for easy mounting of suppressors

Comes with a 23 round gas magazine

Hephaestus High Performance CNC Aluminum Piston Head For Krytac Kriss Vector GBB SMG g Durable and light weightCNC 6061 Aluminum Constructed Piston Head Enhanced Air sealing & Cycling Performance Improve Gas Efficiency and Stability Drop In Replacement Design for the Original Piston Head Compatible With Krytac Kriss Vector GBB SMG Package Included: Hephaestus High Performance Piston Head For Krytac Kriss Vector GBB SMG Piston Head O Ring