PRODUCT SPECIFICATIONS: Dimension 1.80 X 3.30 X 10.00 Height 1.8000 Width 3.3000 Length 10.0000 APPLICATION SEE CHART THICKNESS IN INCHES 1 COLOR BLACK HEIGHT IN INCHES 5.0000 WIDTH IN INCHES 1.5400 ATMOSPHERIC CHAMBERS OPTIMIZE RECOIL REDUCTION,ANTI-MUZZLE JUMP TECHNOLOGY,NON-SLIP SURFACE FITS STOEGER M3000/3500, AND GIRSAN MC 312 SEE CHART FOR MORE INFO. NO DIRECT SHIP TO CALIFORNIA