Made in the USA - 922R Compliant Fits AR15 with standard Delta ring assembly, barrel nut and round handguard cap. Lightweight, two piece slim tubular profile for better handling. Top Picatinny weaver rail extends to upper receiver for continuous mounting platform. Includes removable two 2-slot and two 4-slot rail sections for 3, 6 and 9 o'clock positions. Precision machined from aircraft aluminum with black anodizing. Simple installation, No gunsmith required. Made in the USA - 922R Compliant Specs: Weight: 6.9 oz Length: 7.28 inch Width: 1.89 inch Height: 2.17 inch