The adams arms standard carbine length piston kit is a short stroke free floating piston system that is self-cleaning and has a corrosive resistant coating.The kit includes a one-piece bolt carrier,.750" picatinny gas block with 3 settings, gas plug, upper receiver bushing and installation rod, bolt spring, drive rod with bushing and spring,.This model also includes an installation dvd and requires a carbine gas length 7.866" from barrel extension to shoulder and a.750" gas seat.
Finish: Black Type: Piston Kit Model: Standard Size: 223 Remington/5.56 NATO Material: Steel
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