PMM Sig Sauer MCX Legacy Full-Auto Kit
$130.00
In stock
Product Details
Please read before ordering.
Compatibility:
This kit is compatible ONLY with GEN1 MCX LEGACY rifles, which can be identified by the keymod rail.
It is NOT compatible with Rattler, Virtus, Spear LT, Spear, MCX, or any other variation of rifle or pistol.
If you are not sure which variation you need, please email customerservice@parkermountainmachine.com before placing your order. If you order incorrectly, we cannot guarantee an exchange.
If you need a kit for MPX, Virtus, Rattler, Spear LT here is a link to the product page
If you are looking for our trip bar for use in a trigger, it can be found here PMM MCX Trip Bar
Product Details:
- 1 x Full-auto trip bar machined from 1018 steel, salt-bath nitride coating
- 2x retaining roll pins (Will need to be ground/ machined to length)
- 1x Carbon steel sear pin, salt-bath nitride coated
Shipping Restrictions:
This product is intended for the manufacturing of an NFA item, and must be regarded as such.
THIS PRODUCT CANNOT BE SHIPPED TO AL, CA, CO, CT, DC, DE, HI, IL, IN, IA, LA, MA, MD, MN, MS, NC, NV, NJ, NY, RI, SC, VA, WA, WI.
If you are an FFL SOT in one of the above states, please email us ahead of ordering as these states have been blocked from ordering.
Special Info:
It is the customer’s responsibility to know, follow, and respect the local and state laws of the state they are purchasing products in, in addition to all Federal laws.
!!!!PMM WILL NOT INCLUDE INSTRUCTIONS OR ANSWER QUESTIONS ABOUT INSTALLATION OR MACHINING ANY SELECT FIRE COMPONENTS!!!!
Best Sellers:
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Rated 4.80 out of 5$8.00 This product has multiple variants. The options may be chosen on the product page
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Rated 4.80 out of 5
$360.00Original price was: $360.00.$300.00Current price is: $300.00. This product has multiple variants. The options may be chosen on the product page -
Rated 4.33 out of 5$10.00 – $12.00Price range: $10.00 through $12.00 This product has multiple variants. The options may be chosen on the product page
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Rated 4.87 out of 5$100.00 This product has multiple variants. The options may be chosen on the product page
Products we support






Clinton K. –
Fantastic parts I hope to come train with You guys soon
Lino L. –
Got it ! Hope Mcx kit same as MPX kit
Justin H (verified owner) –
Amazing fit and finish. The trip bar fit into the receiver like a glove. Works like is should!
Joe –
It doesnt fit the mpx copperhead