This is a package to reduce the weight off of your factory bolt carrier. Save approximately 3 ounces by lightening up the factory carrier. Helps with recoil control as well as weight reduction. Additional tuning is generally not required in 5.56mm Acr’s.
These are only recommended for 5.56mm and 300 Blackout conversions. Not recommended for 6.8, 7.62×39, 6.5 Grendel, .450 Bushmaster, etc…
**Requires customers bolt to be sent in for lightening. **