Sig Sauer’s heritage spans more than a century of craftsmanship and performance. Introduced in 2014, the P320 centers on a modular fire control unit that lets owners choose different grip sizes and slide lengths to fit specific roles such as carry, training, or duty use. The platform’s broad adoption, including significant institutional use, has helped create a deep ecosystem of compatible parts and support. For builders, that means a practical starting point for tailored configurations without replacing the core firearm.

Choose threaded if you plan to run a comp or want flexibility for future accessories. Choose non threaded for the cleanest profile and lowest weight.

Core features

• 416R stainless steel with a precise, true drop in fit

• SAAMI spec chambering for reliable function

• Non threaded versions with an 11-degree target crown

• 1/2x28 threaded versions with an included O-ring-locked thread protector

• Enhanced geometry at critical points for smooth feeding and easy installation

• Multiple specialty finishes for durability and style

The Axiom slide ships with an RMSc footprint that supports popular Holosun and similar micro optics. Lightweight side windows and a top-milled pocket trim mass for faster return to sight and a balanced feel. Cobra-cut front serrations and angled rear serrations provide a confident grip for press checks and racking. Precision machining keeps cycling smooth, and the profile pairs cleanly with both threaded and non-threaded barrels for a cohesive build.

P320 Compact, X-Carry, M18 (3.9 in)

• Non threaded barrel length: 3.9 in

• Threaded option: 1/2x28, approx. 4.64 in overall

• Works seamlessly with the Axiom slide for 3.9-length builds

P320 XCompact (3.6 in)

• Non threaded barrel length: 3.6 in

• Threaded option: 1/2x28, approx. 4.3 in overall

• Pairs with the appropriate 3.6-length slide configuration

If you want a cleaner shooting experience, more consistent accuracy, and an optic ready top end, match a TRUE Precision P320 barrel with the Axiom slide. You get American-made materials, precise fitment, and a cohesive design that looks right and runs right. Finish your build with the parts that drop in, line up, and perform.