The Adams Arms Standard Mid Length Piston Kit a short stroke free floating piston system that is self-cleaning and has a corrosive resistant coating. The kit includes an one-piece bolt carrier, .750" Picatinny gas blck with 3 settings, gas plug, upper receiver bushing and installation rod, bolt spring, drive rod with bushing and spring, and a M4 Handguard cap. This model also includes an installation DVD and requires a mid gas length 13.241" from barrel extension to shoulder and a .750" gas seat.
Specifications:
- Type: Piston Kit
- Model: AR Style
- Size: 223 Remington/5.56 NATO
- Material: Steel
- Finish: Black
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