Please read before ordering.
Compatibility:
Compatibility with MCX Trip Bar:
The MCX trip bar is compatible with Rattler, Virtus, Spear LT, and MPX uppers.
It is NOT compatible with the large frame Spear (.308 & .277)
Compatibility with Legacy MCX Trip Bar:
The Legacy trip bar 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, MPX or any other variation of rifle or pistol regardless of generation.
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.
Compatibility with FRTs:
While we still have a lot of testing to do, we can confirm that our product functions with the Delta Team Tactical & the Rare Breed trigger.
Our trip bar is NOT compatible with any Super Safety style triggers. You will need the trigger manufacturer’s slip kit.
If you’re having a fitment issue, do not use brute force. You will bend our bar and it will no longer function.
Compatibility for an NFA item:
If you are an FFL/ SOT looking for our Full Auto kit, it can be found below:
PMM RATTLER/VIRTUS/MPX/SPEAR LT Full-Auto Kit
PMM Sig Sauer MCX Legacy Full-Auto Kit
Product Details:
MCX Trip Bar Includes:
- 1x PMM trip bar, machined in house from 1018 steel and black DLC coated
- 2x retaining spring pins
Legacy Trip Bar Included:
- 1x PMM trip bar, machined in house from 1018 steel and salt-bath nitride coated
- 2x retaining spring pins
Shipping Restrictions:
With laws changing constantly in each state, it is the customer’s responsibility to know, follow, and respect the local and state laws of the state they are purchasing products in. If you are unsure of your local and state laws and regulations, please call your local law enforcement prior to ordering.











