Tippmann Arms M4 CQB Tactical Gas Blowback Airsoft Rifle Internal Marker Upgrades 1 Pack O-rings - 015

1 Pack O-rings - 015 NBR70

but is also flexible enough to prevent clipping of the stack above the breech as the bolt drives forward

This is a used Planet Eclipse Etha

Dual rubber detents

Tippmann Arms M4 CQB Tactical Gas Blowback Airsoft Rifle Internal Marker Upgrades 1 Pack O-rings - 015The M4 Carbine brings full auto no batteries required performance and Tippmanns legendary warranty and service into the airsoft market. Key features include the Tippmann proven inline bolt system, adaptable air system, rate of fire and velocity adjustability and an authentic M4 AR style. The M4 Carbine features a realistic flip top break down design like a true M4 AR. Its also compatible with airsofts standard magazines, from 30 to 300 rounds. The M4