Sig Sauer Sig1 MPX P226 Features The sub-gun breakthrough 50 years in the making with a new standard in operator safety and in-field adaptability; adopted in a budget-friendly spring rifle package. This backyard plinker is ready for use out of the box with a 500 round high capacity gravity fed magazine 3-position polymer stock and flip-up front and rear sights. With M1913 compatible rails all over this spring rifle you can configure it it to your liking with optics lasers lights and grips. Sig Sauer Sig1 MPX P226 Specifications Injection Molded Polymer Construction Spring Powered Pistol And PDW 1:1 Full Size Replicas 500 Round Drop Free MPX Magazine 12 Round P226 Magazine Removable 3-position Adjustable Stock Included For MPX 20mm M1913 Picatinny Rails For Supreme Accessorization Options Ambidextrous Safety Lever For MPX