Heart & Industry

Home · HI-Capa Hub

GPT AIRSOFT HOOK CASTLE NUT WRENCH

GPT AIRSOFT HOOK CASTLE NUT WRENCH

HI-Capa Hub

£13

We have not confirmed this price since it was first recorded. Check before buying.

Hook wrench made of forged chrome vanadium steel (CRV). Manganese phosphate surface finish.For AR /M4 /HK416 model buffer extension nut (and HK416 round hole nut). Can be used for the DD MK18 barrel nut.

HI-Capa Hub's own words, read from their page.

Buy from HI-CAPA HUB LTDPrice seen 2026-09-26. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.