Adams Arms XLP Piston Kits build off the very popular Adams Arms standard piston kits by including the new XLP multi-adjustable low profile gas block and low mass bolt carrier. This short stroke free floating piston system includes the gas plug, upper receiver bushing, bushing installation rod, bolt spring, drive rod with bushing and spring and instructional DVD. These kits do not include handguards. Gas block is .750” internal dimension.
Big Book Catalog, Issue:68, Page:017