Adding mass to your chassis is the most effective way to help balance your rifle and mitigate recoil, keeping you on target for spotting fall of shot and quick follow ups. Each PRS weight kit comprises of two, 200g (7oz) weights with M-LOK fixings. These weights can be fitted to any M-LOK compatible handguard using our pre-installed fitting kit. Our steel nitrided weights are ergonomically designed and ruggedly finished for years of abuse and carry our lifetime warranty. Designed, tested and manufactured in Great Britain by Black Rifle Limited and is warranted for life.