Angstadt Arms Suppressor Series Handguard 14.8" Long 1.7" Inner Diameter M-LOK Fits AR-15 Anodized Finish Black. 3" M-LOK handguard with 45 degree mounting offsets and an internal diameter of 1.7" to accept most sound suppressors. Specifications for Angstadt Arms Suppressor Series Handguard: Manufacturer: Angstadt Arms Color: Black Finish: Anodized Black Gun Make: AR Platform Gun Rail: M-LOK Additional Features: Handguard Case Finish: Anodized Handle Color: Black Blade Finish: Anodized Handle Finish: Anodized Length: 14.8 in Features of Angstadt Arms Suppressor Series Handguard: QD Swivel mounting points Package Contents: Angstadt Arms Suppressor Series Handguard