Samson 010612901 SXT Handguard M-LOK AR-Platform Black Anodized 6061-T6 Aluminum 15" The SXT Series Handguards Feature a Free-floating AR-15 Handguard With An M-LOK Attachment System. The Simple clamping System uses Two Cross Bolts Which Fit Into The Barrel Nut For a Rapid And Easy Installation. (The Old SXS Series clamping System Used a Bias Block On The Bottom To Secure The Forearm To The Barrel Nut Which required knurling). Inside Diameter 1.25", Outside Diameter Firearm Type: AR-Platform Material: 6061-T6 Aluminum Finish: Black Anodized Free Floating: Yes
