CMMG Zeroed Picatinny End Cap AR-15 .22LR 6061 Aluminum Black

The CMMG Zeroed Picatinny End Cap is a purpose-built accessory designed specifically for AR-15 .22LR conversion builds. In a dedicated .22LR setup the standard carbine buffer tube is not required, and this end cap is installed in its place to cleanly close off the rear of the lower receiver while adding functional 1913 Picatinny rail space at the very back of the firearm.

Precision-machined from 6061 aluminum and finished in a durable hard anodized black coating, the Zeroed Picatinny End Cap drops into any mil-spec AR-15 lower receiver. The integrated Picatinny sections provide a clean, snag-free mounting point for slings, single-point attachments, lights, or other rail-compatible accessories, all without the bulk, weight, or complexity of a full buffer tube assembly. It is a smart, low-mass solution for rimfire trainers and compact .22LR builds.

Made by CMMG in the USA and finished in true black, the Zeroed Picatinny End Cap brings the company's renowned fit and finish to one of the simplest yet most overlooked pieces of an AR build. It is an ideal upgrade for anyone running a dedicated .22LR platform who wants a minimalist rear configuration without sacrificing the ability to mount accessories.