This kit is contains all the necessary parts to mount a Commercial 6-position receiver extension to a lower receiver. Kit contains receiver extension, castle nut, stock ring, buffer and spring. Available options for different buffers.

The CTR is a replacement carbine stock body, adjustable for length of pull. This stock features a unique locking mechanism that friction locks the stock to the buffer tube for zero movement. Kit includes a 6 position commercial buffer tube, castle nut, stock plate, carbine buffer and spring. Buffer upgrades available. Available in Black.

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The MOE Stock is a variation of the popular Magpul CTR. The MOE version is meant to supplement, not replace the existing CTR. The Magpul Original Equipment (MOE) stock does not have the QD socket, or friction lock, but feels and looks very similar to its CTR cousin. Kit includes a 6 position commercial buffer tube, castle nut, stock plate, carbine buffer and spring. Buffer upgrades available. Available in Dark Earth & OD Green.