Sig Sauer factory parts kit for the Sig Sauer P320 9mm Full Size pistol.

The new Grayguns P320 Competition Trigger System delivers the unequalled smooth feel and hot performance of our custom action work in a cleverly engineered drop-in kit.

Paired with Bruce Gray’s exclusive hybrid trigger design, this is the most advanced drop in competition system available for all post/Voluntary Upgrade P320 models.

The P320 Competition Trigger System is intended for installation by an armorer, gunsmith or skilled individual who is familiar with the P320 fire control unit.

The kit includes the following exclusive Grayguns elements:

• Our newly designed hybrid trigger with built in over-travel adjustment
• Precision-ground custom sear, polished and finished in hard nickel PTFE. Specifically designed for competition or range use only.
• Grayguns original competition sear springs
• Intermediate competition sear springs
• Original soft competition trigger bar spring
• New snappy-reset trigger bar spring
• Micro-polished, extended safety lever pin

Specifications and Features

• Specifically intended for use only in P320s that have gone through SIG’s Voluntary Upgrade Program.
• Reduces trigger pull weight to suit your preferences, with additional springs provided to yield custom pull weights.
• Adjustable over-travel, stops at optimum trigger face angle
• Smoother takeup and clean release sensation, with clean reset
• Preserves factory sear face engagement height and mechanical safety values
• Proven reliable and durable for high-volume professional use
• Limited lifetime warranty on materials and workmanship

Fit Guide

Fits all variations within the P320 (upgraded) system. Including all sizes, TACOPS Carry, X-VTAC, X-Carry, X-Five and RX versions.

Disclaimer

These parts are intended for installation by a qualified armourer or gunsmith. In some cases professional fitting will be required by a trained, qualified armorer/gunsmith who is very familiar with the pistol’s action. This is due to the varying tolerances present in all mass-produced firearms. Although kits fit with no issues in a great majority of pistols, Grayguns is unable to guarantee perfect functionality in every instance. Grayguns does offer installation services for all parts kits we offer. Note – The safety lever spring is no longer needed in the P320, and is not included in the kit.

Developed by the renowned gunsmiths of Grayguns, the FAT guide rods are designed to optimally support factory Sig Sauer, and Grayguns custom multi-strand springs for maximum service life and smooth, reliable function. Designed to the maximum nominal diameter to fit each pistol perfectly, FAT rods also eliminate the possibility of coil-jumping and damage when used with correctly-selected after-market single strand recoil springs. Grayguns FAT rods are hardened and stress-relieved to withstand a lifetime of hard use as well as being carefully polished stainless or finished in ultra-durable Super Black. Lifetime guarantee against galling, ringing or breakage. Simply put, some of the highest quality guide rods available today.

Fits Sig Sauer P320 X-FIVE - SUPER BLACK Finish

The Grayguns P320ST and P320CT triggers are specifically designed for guns that have gone through SIG Sauer’s® Voluntary Upgrade Program. The trigger is available in your choice of straight-face or curved-face design.

The Grayguns P320 trigger yields superior trigger pull results while supporting the voluntary upgrade’s enhanced reliability and rough handling performance qualities. It is designed for drop-in installation.

P320 Trigger – Straight or Curved – Specifications and Features

• Specifically intended for use only in P320s that have gone through SIG’s Voluntary Upgrade Program.
• Reduces total trigger pull weight approximately 2 pounds below factory-stock for the standard series, and about 1.25 pounds for the X-Five variant.
• Designed for use with the SIG factory trigger bar spring
• Minimal over-travel, stops at optimum trigger face angle
• Smoother takeup and release sensation
• Preserves factory sear engagement and mechanical safety values
• Proven reliable and durable for high-volume professional use
• Our triggers are externally comparable in appearance to the factory part
• Limited lifetime warranty on materials and workmanship

Fits all variations within the P320 (upgraded) system. Including all sizes, TACOPS Carry, X-VTAC, X-Carry, X-Five and RX versions.

This trigger was previously described as our Practical Enhanced Leverage Trigger (PELT).

Spring Precision Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .25" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Red. 0.80 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211B, square hole type.

The SIG SAUER P320 factory flat trigger is a direct replacement to your stock trigger. The flat trigger design gives shooters a lower position on the trigger, which will increase leverage for a smoother, more consistent pull.

Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .375" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Blue. 1.08 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211, square hole type.

Brass Base Pads are perfect for competitors looking to add weight to their pistol. As compared to our 6061 Aluminum pads with anodized coating for the P320, P226 or VP9/P30 the Brass Base Pads are significantly heavier; more than triple the weight.For USPSA Production, ensure you weigh your setup to ensure you are under the maximum weight limit.

Each pad features a 3-by-5 matrix. Number your mags using a Sharpie or paint pen. Additional space is available to write your initials.

Weight Comparison – P320

• Brass (P320 Extended Pad) – 3.75 ounces
• Brass (P320 Standard) – 1.1 ounce
• Grayguns Hard Duty Use Aluminum Pads (P320) – About 1 ounce
• OEM P320 base pads – About .20 ounces

For the P320 series, base pads are designed to work with full-size magazines in X-Series grip modules with – and without – the magwell installed. Will work with 21-round magazines and will work with standard P320 grip modules.

Base pads are compatible with new SIG P320 magazines with the square pegs. 1 per package.

Factory Sig Sauer P250/P320 Grip Module allows the shooter to tailor the pistol to meet their specific grip size requirements. Polymer construction and comes with the magazine catch installed. This is the small grip for the .45ACP P250/P320 Sub-Compact. Flat Dark Earth.

Springer Precision Sig P320 9mm +10 extended capacity base pads are CNC machined from aluminum and hard anodized for a long service life. This base pad includes with an extra power spring to use with your follower. The unique locking mechanism allows a very solid attachment with a simple backing out of the discrete set screw. They are specifically designed to work with Springer Precision mag wells. The unique attachment design provides a low profile, sleek design that is very stable and easy to remove. Includes a .050 hex driver that makes installation and removal a breeze. There will be a gap between the base pad and frame if used with a compact model. Red 2.474oz

Springer Precision SIG P320/P250 9/40 140mm extended capacity base pads are CNC machined from aluminum and hard anodized for a long service life. This lengthens the magazine and adds rounds to your magazine. More rounds can be added if you choose the Grams follower options. The unique locking mechanism allows a very solid attachment with a simple backing out of the discrete set screw. They fit the USPSA 140mm magazine gauge. The unique attachment design provides a low profile, sleek design that is very stable and easy to remove. * We include a .050 hex driver that makes installation and removal a breeze. Up to 23 9mm and 20 40. cal rounds with the extra capacity follower kit. Comes with an extra power spring. Red 1.40 oz

The Grayguns P320 Adjustable Straight Trigger is the ultimate fire control refinement for this amazingly versatile platform, embodying the best innovations from Bruce Gray’s continuing R&D program with SIG Sauer®. Like all Grayguns Inc. products, proudly American made from precision machined tool steel, heat treated, hand finished and gauged for perfect appearance, fit and function.

Designed for hard duty use, with the toughness to outlast your pistol, our P320 triggers are Grayguns Grade and guaranteed for life.

P320 Trigger – Straight or Curved – Specifications and Features

• Adjustable over-travel eliminates gross movement after the sear is released, and reduces trigger travel to reset
• Enhanced Leverage geometry reduces pull weight by 30% with stock springs
• Smoother takeup, sear release and reset sensation
• Optimal 90⁰ sear release
• Supports Voluntary Upgrade rough handling characteristics for assurance and reliability

Fits all variations within the P320 (upgraded) system. Including all sizes, TACOPS Carry, X-VTAC, X-Carry, X-Five and RX versions.

This trigger was previously described as our Practical Enhanced Leverage Trigger (PELT).

Sig Sauer P320 X-Series Grip 9/40/357 Carry - Large - Black

Spring Precision Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .25" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Blue. 0.80 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211B, square hole type.

Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .375" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Red. 1.08 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211, square hole type.

The new Grayguns P320 Adjustable Straight Competition Trigger System delivers the unequalled smooth feel and hot performance of our custom action work in a cleverly engineered drop-in kit.

Paired with Bruce Gray’s exclusive straight trigger design, this is the most advanced drop in competition system available for all post/Voluntary Upgrade P320 models.

The P320 Competition Adjustable Straight Trigger System is intended for installation by an armorer, gunsmith or skilled individual who is familiar with the P320 fire control unit.

The kit includes the following exclusive Grayguns elements:

• Our newly designed straight trigger with built in over-travel adjustment
• Precision-ground custom sear, polished and finished in hard nickel PTFE. Specifically designed for competition or range use only.
• Grayguns original competition sear springs
• Intermediate competition sear springs
• Original soft competition trigger bar spring
• New snappy-reset trigger bar spring
• Micro-polished, extended safety lever pin

Fit Guide

Fits all variations within the P320 (upgraded) system. Including all sizes, TACOPS Carry, X-VTAC, X-Carry, X-Five, Legion and RX versions.

Disclaimer

These parts are intended for installation by a qualified armourer or gunsmith. In some cases professional fitting will be required by a trained, qualified armorer/gunsmith who is very familiar with the pistol’s action. This is due to the varying tolerances present in all mass-produced firearms. Although kits fit with no issues in a great majority of pistols, Grayguns is unable to guarantee perfect functionality in every instance. Grayguns does offer installation services for all parts kits we offer. Note – The safety lever spring is no longer needed in the P320, and is not included in the kit.

Brass Base Pads are perfect for competitors looking to add weight to their pistol. As compared to our 6061 Aluminum pads with anodized coating for the P320, P226 or VP9/P30 the Brass Base Pads are significantly heavier; more than triple the weight.For USPSA Production, ensure you weigh your setup to ensure you are under the maximum weight limit.

Each pad features a 3-by-5 matrix. Number your mags using a Sharpie or paint pen. Additional space is available to write your initials.

Weight Comparison – P320

• Brass (P320 Extended Pad) – 3.75 ounces
• Brass (P320 Standard) – 1.1 ounce
• Grayguns Hard Duty Use Aluminum Pads (P320) – About 1 ounce
• OEM P320 base pads – About .20 ounces

For the P320 series, base pads are designed to work with full-size magazines in X-Series grip modules with – and without – the magwell installed. Will work with 21-round magazines and will work with standard P320 grip modules.

Base pads are compatible with new SIG P320 magazines with the square pegs. 1 per package.

Factory Sig Sauer P250 Grip Module allows the shooter to tailor the pistol to meet their specific grip size requirements. Black polymer construction and comes with the magazine catch installed. This is the large grip for the .45ACP P250 Full Size.

*Note: These are the updated Grip Modules which includes a replacement new style slide catch lever, slide catch lever spring, and slide catch post.