Utilizing the same patented ambidextrous functionality as its predecessor the Raptor-LT handles are machined from 7075 aluminum MILSPEC Type III hard anodized then over-molded with high-strength fiberglass reinforced polymer for the ultimate combination of strength weight and durability. Compatible with AR15/M16 or AR10/SR25-pattern rifles the Raptor-LT is available in black flat dark earth and grey all designed to match standard MagpulA(R) color offerings. Like all Radian products the Raptor-LT comes with a limited lifetime warranty and is 100% designed and manufactured in the USA.Examples of popular models which AR10/SR25 is compatible: Aero M5 STAG-10 Armalite AR10 Knights Armament SR25 Daniel Defense DD5 V3 V4 V5 DPMS Gen1 and many others using DPMS Gen1 or Armalite AR10 platform.AR10/SR25 - NOT COMPATIBLE with SIG716 Savage MSR10 Smith and Wesson M&P10 these models use proprietary charging handle designs.