Made in USA.
- Rifle-Length Receiver Extension/Buffer Tube
- Mil-Spec 6061 T6 Aluminum with a hard coat anodize.
- Rifle-Length Recoil Buffer -5.2oz
- Stainless Steel Rifle Recoil Spring
or upgrade to:
- Rifle-Length Enhanced Chrome Silicon Recoil Spring
- Constructed from certified USA made chrome silicon spring wire
- Heat treated, stress relieved
- Provides consistent spring pressure for hundreds of thousands of cycles (estimated 750,000+)
- Greater resistance to heat & high stress cyclic rates
- Improves operation, long-lasting performance
- Consistent pressure reduces bolt bounce
- Significantly reduces the perceived "twang" noise which is common during firing
*photo shows kit w/enhanced spring