M-38, M-44, Chinese T-53 carbines in both hex and round receivers; Will fit the Finnish M-39 rifles and carbines with some modification Incorporates three (3) integral steel inserts for ball lock / push button quick detach sling swivels (sling swivels not included) Length of pull is thumbwheel click adjustable from 13.5" to 14.625" Constructed of legendary high strength, carbon fiber and glass reinforced tan polymer Cheek riser is thumbwheel click adjustable in .05" increments with a travel of 1.75" Ergonomic goose neck style grip with comfortable ambidextrous palm swells Precision fit inlet steel pillar bedding Free- Mfg: Pro Mag