*CONTACT US FOR A SPECIAL COUPON CODE*
JE Machine TS-LPKSSP320 SIG P320 LOWER PARTS KIT - SKU: TS-LPKSSP320 - UPC: 811577035438
Product Description
The JE Machine Tech TS-LPKSSP320 is a complete lower frame internal parts kit designed for Sig Sauer P320 modular handguns (compatible with 9mm, .40 S&W, and .357 SIG configurations). Precision-engineered to exact factory dimensional specifications, this kit provides all necessary internal fire control unit (FCU) small parts, levers, pins, and springs required to assemble a bare FCU frame or overhaul worn lower components.
Every component in the TS-LPKSSP320 kit is precision-machined or molded from high-grade heat-treated tool steel, stainless steel, and durable spring alloys to ensure consistent trigger break, clean reset, and positive magazine catch lockup. The kit includes the trigger, trigger bar, trigger bar spring, sear, sear housing components, takedown safety lever, slide catch lever assembly, magazine catch assembly, and associated pins and springs.
Ideal for custom Sig P320 modular builds, custom chassis assemblies, or routine armorer overhaul maintenance, the JE Machine Sig P320 Lower Parts Kit offers drop-in fitment and long-term cyclic reliability.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits Sig Sauer P320 Fire Control Units (FCUs) chambered in 9mm, .40 S&W, and .357 SIG across Full Size, Carry, Compact, and Subcompact grip modules. (Not compatible with .45 ACP or 10mm P320 FCU variants).
- Verify host firearm slide and frame are completely clear, magazine removed, and chamber visually and physically confirmed empty.
- Install magazine catch and spring assembly into the desired side of the grip module.
- Assemble internal FCU skeleton by seating the sear, safety lever, and trigger bar into the housing frame.
- Align trigger shoe and trigger pin, securing internal components into the metal FCU frame chassis.
- Insert completed FCU into grip module, insert takedown lever, and perform full function and dry-fire safety checks before slide mounting.
Key Features
- Complete FCU Lower Assembly: Contains all essential internal frame and fire control parts needed to complete or overhaul a P320 FCU.
- Sig Sauer P320 Platform Compatibility: Fits 9mm/.40/.357 Sig P320 factory chassis frames and custom aftermarket grip modules.
- Heat-Treated Tool Steel Construction: Precision-milled steel sear and trigger components resist heavy friction and cycling wear.
- Clean Factory-Style Trigger Dynamics: Premium spring rates deliver consistent pull weight and crisp tactile reset.
- Drop-In Installation: Manufactured to exact tolerances for straightforward assembly without custom hand fitting.
Product Specifications
- Brand: JE Machine Tech
- MPN: TS-LPKSSP320
- UPC: 811577035438
- Platform Compatibility: Sig Sauer P320 (9mm / .40 S&W / .357 SIG)
- Component Type: Lower Frame Internal Parts Kit (LPK / FCU Parts)
- Material: Heat-Treated Tool Steel, Stainless Steel & Alloy
- Finish: Black Matte / Natural Steel
