DBST-ACE's Ultra Lite AR-15 Entry Length Stock with Buffer Tube (AR-UL) uses Ace's original soft foam over tube for the ultimate cheek weld. A billet machined gusset reinforces the receiver extension tube at its weakest point directly behind the receiver. Precision machined aluminum butt clamps directly to the RET and provides a machined in sling mount. Also includes your choice of 0.5 or 1 inches Recoil Pad. Does not include Buffer Tube "Buffer" or Spring. Features: Stock and buffer tube Buffer spring and buffer not included Precision crafted