Sig Sauer P320 FCU Lower Parts Kit, 9/40/357, Black, Low Profile Slide Catch

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(10 reviews) Write a Review
$265.00
SKU:
P320-FCU-PARTS-1

This kit includes a Black Sear Housing.

Have you been looking for a complete SIG Factory Lower Parts Kit for your P320? Well, here it is. Don't be bothered with piecing all the parts together yourself. This set is complete, and we offer upgrade options. Optional manual safety selector parts available.

Use this kit to upgrade your Sig Sauer P320 or finish your 80% Sig Sauer P320 compatible gun frame insert.

This complete factory lower parts kit includes all the upgraded pieces from SIG voluntary drop-safe recall.

This kit is compatible with any Sig P320 slide and grip module in 9/40/357.

Add on the Manual Safety Parts Kit if you are building an M17, M18 or any other P320 FCU with the manual safety cutout.

Apex Trigger Bar Option substitutes the standard Sig trigger bar for the Apex Forward Trigger Bar (112-041)

About this item:

  • All Parts are Brand New, OEM SIG Parts. These parts are NOT taken from existing 320 FCU's.
  • All Parts are the newest versions from SIG, post recall.
  • Use this kit to upgrade your Sig Sauer P320 pistol or to finish your Sig P320 80% MUP Frame.
  • This kit is NOT compatible with the Sig P320 .45ACP (Click Here for .45 Kit)
  • Kit does not include a trigger, if you need a trigger select one under Trigger Option.
  • This is ONLY the parts. No Fire Control Unit (FCU) is included.

Standard Set Includes:

  • Disconnector
  • Safety Lever
  • Safety Lever Pivot Pin
  • Sear
  • Sear Housing
  • Sear Housing Pin / Safety Lever Housing Pin
  • Sear Pin
  • Sear Springs (x2)
  • Low Profile Slide Catch Lever
  • Slide Catch Lever Spring Post
  • Slide Catch Level Spring
  • Slide Catch Lever Pin
  • Take Down Lever
  • Take Down Lever O-Ring
  • Take Down Safety Lever
  • Take Down Safety Lever Spring
  • Trigger Bar Spring
  • Trigger Stop Pin
  • Trigger Bar

Manual Safety Set Includes:

  • Disconnector
  • Safety Lever
  • Sear
  • Sear Housing
  • Sear Housing Pin / Safety Lever Housing Pin
  • Sear Pin
  • Sear Springs (x2)
  • Low Profile Slide Catch Lever
  • Slide Catch Lever Spring Post
  • Slide Catch Level Spring
  • Slide Catch Lever Pin
  • Take Down Lever
  • Take Down Lever O-Ring
  • Take Down Safety Lever
  • Take Down Safety Lever Spring
  • Trigger Bar Spring
  • Trigger Stop Pin
  • Manual Safety Lever (Right)
  • Manual Safety Lever (Left)
  • Manual Safety Trigger Bar
  • Manual Safety Detent Spring
  • Manual Safety Detent

Trigger Options

We offer the following trigger options with this kit. Detailed specs are available on each product page. 

Sig Sauer P320 Lightweight Adverse Trigger - Curved, Manganese Phosphate

Sig Sauer P320 Lightweight Adverse Trigger - Curved, Tungsten DLC

Sig Sauer P320 Flat Face Trigger 90 Degree

Sig Sauer P320 Flat Skeletonized Enhanced Stainless Steel Trigger

Apex P320 Advanced Curved Trigger

Apex P320 Advanced Flat Trigger

  • 5
    As expected

    Posted by Rob on Mar 06, 2021

    Fast shipping, parts fit perfect as expected.

  • 5
    Perfect kit for a P320 build!

    Posted by Tim T on Dec 10, 2020

    This kit is nicely done, with each part in its own plastic wrapper (most are SIG OEM packaging), and everything is packaged into a larger bag that is clearly labeled with part names and numbers. Everything is post-upgrade and ready to go for your next P320 build!

  • 5
    Awesome parts kit, i wish it had the X-grip slide lock

    Posted by Jonathon Thorpe on Dec 09, 2020

    Parts are exactly what I expected and shipped in a timely manor. I just wish it came with the X-grip slide lock or that was an option to upgrade.

  • 5
    P320 fcu lower parts

    Posted by William on Nov 07, 2020

    Parts as advertised. Had a few problems assembling but they were right there to help.

  • 5
    Exactly the quality that you expect

    Posted by James G. on Nov 04, 2020

    The parts that came were all individually sig sauer bagged and sealed pieces. They were all in spec and function flawlessly.

  • 5
    P320 lower parts kit

    Posted by Rob on Oct 03, 2020

    Complete kit, brand new in unopened official sig bags. Delivered as advertised. What more could you ask for

  • 5
    Shipped very quick with brand new quality parts! Thanks Sig Sauer.

    Posted by Matthew W. on Aug 20, 2020

    Looked everywhere for a P320 FCU and found it at a reasonable price. No wonder these kits go quick!

  • 5
    P320 Lower parts kit

    Posted by George R. on Aug 20, 2020

    All new SIG OEM parts , bagged and marked for easy installation.

  • 5
    P320 lower parts kit

    Posted by Kevin S. on Aug 19, 2020

    Love this parts kit at a reasonable price. The kit comes with all factory Sig Sauer parts.

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