The Sig Sauer MPX Copperhead (Sig part no. PMPX3BCH) shrinks Sig’s proven MPX platform down to an ultra-short 3.5-inch barrel, making it one of the most compact 9mm pistols in the lineup. A 1-in-10 twist rate keeps the platform running reliably, and the pistol ships with a 2-position brace that adjusts to fit your preferred shooting position. An ambidextrous thumb safety brings familiar, deliberate manual-of-arms control, and the pistol comes with one 20-round magazine ready to load. Finished in tan by Sig Sauer, this MPX Copperhead is built for shooters who want maximum concealability without giving up the MPX’s smooth-shooting design.

Key Specifications

• Chambered in 9mm, offering low-cost, low-recoil shooting in an ultra-compact package.
• Runs an ultra-short 3.5-inch barrel for maximum concealability and maneuverability.
• Holds 20 rounds per magazine, and ships with 1 magazine included.
• Uses a 1-in-10 twist rate matched to a wide range of 9mm bullet weights.
• Ships with a 2-position brace that adjusts to fit your preferred shooting position.
• Equipped with an ambidextrous thumb safety for familiar, deliberate manual operation.
• Ships optics-ready with no fixed sights, leaving the top rail open for a red dot.
• Overall length measures 32.1 inches, remarkably compact for the platform.
• Finished in tan for a distinctive, durable exterior.

Frequently Asked Questions

How compact is the MPX Copperhead? Very — it runs a 3.5-inch barrel, one of the shortest configurations in the MPX lineup.

Does it come with a brace? Yes, a 2-position brace ships installed and adjusts to your preferred shooting position.

Does it come with a magazine? Yes, one 20-round magazine ships with the pistol.

Buy the Sig Sauer MPX Copperhead Pistol, 9mm, 3.5-Inch, Tan

The MPX Copperhead delivers Sig’s smooth-shooting MPX platform in its most concealable form yet, ideal for truck-gun duty or close-quarters defense. Order it from our AR pistols lineup at our Lubbock, Texas gun shop for fast, insured shipping to your FFL.