Sig Sauer Parts

This is a new Sig Sauer PMCX complete lower receiver. It features lightweight aluminum construction with a blackfinish, ambidextrous safety selector, flat blade match trigger, polymer grip, and a side folding telescoping stock. The manufacturer part...

This assembly includes everything you need to add or replace your MPX or MCX stock with a folding buffer tube and the Magpul SL-K Stock. Fits MPX/MCX Platform Magpul SL-K Stock Side Folding 1913 Picatinny Compatible

This is a new Sig Sauer MCX SPEAR-LT complete lower receiver. It features lightweight aluminum construction with a Coyote finish, ambidextrous safety selector, flat blade match trigger, polymer grip, and a side folding telescoping stock. This...

MCX Spear-LT IR is a semi-automatic rifle chambered in .223 Rem and 5.56 NATO. Featuring a 16" barrel, this rifle combines durability and performance in a compact package. The FDE Cerakote finish and coyote (FDE) frame make it both visually appealing and...

The MCX-SPEAR LT introduces the much-anticipated 7.62×39 caliber to the MCX lineup. Equipped with a new latch system, the 7.62×39 MCX-SPEAR LT is designed to accommodate a wide range of 7.62 caliber ammunition, ensuring reliable performance...

The Sig Sauer PMCX Spear-LT Lower features a fully ambidextrous bolt catch and release, coyote anodized finish, minimalist stock and AR-15 style trigger compatibility. These lowers are compatible with any Spear-LT Upper making it easy to switch between...

The Sig Sauer Tapered Barrel Muzzle Adapter for 7.62mm (TAPER-CAP-762) is an adapter that converts a Sig Sauer tapered (unthreaded) barrel profile to a threaded interface, enabling use of suppressors, muzzle brakes, flash hiders, and other threaded...

This is a new Sig Sauer MCX-SURG complete suppressed upper receiver chambered for 5.56 NATO bundled with an MCX SPEAR pistol lower receiver. The MCX-SURG Upgrade Kit was specifically engineered as a drop in upgrade for a standard M4A1 lower, converting...

MCX-SURG - Suppressed Upper Receiver Group - ***These are currently shipping in waves, and orders will be shipped out in the order they were received.*** SIG SAUER is proud to introduce the MCX-SURG (Suppressed Upper Receiver Group)...

The Sig Sauer MCX Spear-LT Lower features a fully ambidextrous controls and rear QD point for slings, 1913 3-slot Pic rail for attaching stock adapters. This lower includes the mimimalist stock, factory manual and lock.  These lowers are compatible...

The Sig Sauer MPX 9mm 35-Round Polymer Magazine (8901025) is a factory-original, high-capacity magazine for the Sig Sauer MPX pistol-caliber carbine and pistol system. This 35-round polymer magazine provides maximum magazine capacity for competitive...

Sig Sauer MPX G2 9mm Cal-X Kit, 8" Barrel. Produced from sturdy steel, this assembled Cal-X kit barrel is for the MPX G2 platform of rifle/pistols chambered in 9mm. The barrel features a length of 8" and has a black coated finish. Kit up, dress up, or...