Our CLE SAM-R are some of the best available. They were originally designed for use by the USMC combat units as a modified M16 providing precision accuracy. They are Krieger-SS 1:7 twist, preban 1/2×28, M4 feed ramps, with 1″ under the handguard, .750 gas block diameter and 740 at the muzzle. If you have a bolt you would like to provide you are welcome to ship it to us for accurate head spacing. If you prefer different threads or feed ramps you can refer to our Krieger Service Rifle.
- Manufactured by: Compass Lake Engineering