The DT Carbine Stock is a drop-in replacement buttstock for AR15/M16/M4 carbines (or comparable platforms) equipped with Mil-Spec profile receiver extensions. It merges the best features of the SL and CTR product lines with its new dual tensioning technology, which provides greater strength and security for a more rugged and stable platform that s easy to adjust. The DT Stock is an A-frame style carbine stock that features an auto-engaging friction lock that s reflexive and inert during adjustment. This produces additional tension on the buffer tube, providing extra tight lockup that minimizes movement between the stock s lock pin and receiver extension. The result is increased durability in case of severe impacts and quick, smooth, and frictionless length-of-pull adjustments on the fly. Other features include a unique, non-slip butt-pad that matches the footprint of the SL line and incorporates the optimized curvature from the CTR, an ambidextrous adjustment lever, a rotation-limiting QD sling mount, and a 1.25 footman s loop. Made in the USA. Platform AR10, AR15, M4, M16, M110, SR25 Compatibility Mil-Spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, LMT, Ruger, S&W, SIG, and others* LOP, M4 Collapsed ~10.6 in. LOP, M4 Extended ~13.9 in. LOP Adjustment Range 3.3 in. Length, max 7.0 in. Height, max 5.3 in. Weight 9.7 oz. Weight, w/ receiver extension ~13.7 oz. Width, max 1.6 in. Color Black *Specifications based on standard-length (flat-back) M4 Carbine receiver extension and may vary depending on tube manufacturer. NOTE: There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): Mil-Spec and Commercial-Spec. The DT Carbine Stock will only fit with the common Mil-Spec tube.