The ODIN Works Heavy Buffer is built to run with Forced Reset Triggers. It offers a simplified, performance-driven approach to blowback PCC tuning, delivering consistent cycling and recoil control without the need for adjustment. Designed to run smoothly on a variety of setups, this buffer achieves increased weight and pairs with an (included) proprietary flat wire spring for reliable operation.Features :8.6 ozIncludes Proprietary Flat Wire SpringAids in Reliable Function with a Forced Reset TriggerDesigned for Carbine-length Buffer Tubes