UTG RAIL PICATINNY AR-15 9"2-PC DROP-IN MID-LENGTHFEATURES -8.68"L x 2.44"W x 2.44"H -Clever top/bottom 2-piece design with integral spinal cords/alignment housing for great fit -Designed with innovative alignment tabs at the front for perfect fit with the standard triangular front cap -Fits middle length Model 4/15 -Includes 4 Picatinny rails each with 18 continuous slots -Great zero-retention capability for all accessories installed on the rails -Easy installation with no modification to the barrel -Black rubber rail guards included -Proudly made in the USA

UTG RAIL PICATINNY AR-15 9"2-PC DROP-IN MID-LENGTHFEATURES -8.68"L x 2.44"W x 2.44"H -Clever top/bottom 2-piece design with integral spinal cords/alignment housing for great fit -Designed with innovative alignment tabs at the front for perfect fit with the standard triangular front cap -Fits middle length Model 4/15 -Includes 4 Picatinny rails each with 18 continuous slots -Great zero-retention capability for all accessories installed on the rails -Easy installation with no modification to the barrel -Black rubber rail guards included -Proudly made in the USA