Lower Receiver Parts Kit with Two Stage Trigger

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Our lower receiver parts kit with two stage trigger includes all the parts you need to assemble a lower receiver into a lower half except for the buttstock assembly. We only use top quality parts in our kits. This kit includes a right hand safety selector.


Trigger pull: 1st stage 2.5lb. 2nd stage 3lb

This LPK includes:

  • A2 Pistol Grip
  • Bolt Catch
  • Bolt Catch Plunger
  • Bolt Catch Roll Pin
  • Bolt Catch Spring
  • Buffer Retainer
  • Buffer Retainer Spring
  • Disconnector Spring
  • Hammer Spring
  • Lock Washer
  • Magazine Catch
  • Magazine Catch Spring
  • Magazine Release Button
  • Pistol Grip Screw
  • Pivot Pin
  • 2x Pivot/Takedown detents
  • 2x Pivot/Takedown detent springs
  • Safety Detent
  • Safety Detent Spring
  • Semi-auto Disconnector- two stage
  • Semi-auto Trigger- two stage
  • Semi-auto Hammer- two stage
  • Semi-auto safety selector (Right Hand)
  • Takedown pin
  • Trigger Guard (Aluminum)
  • Trigger Guard Roll Pin
  • 2x Trigger/Hammer Pins
  • Trigger Spring

SKU: STAG300247


Q: Do you have instructions or a video on how to install the kit?

A: We strongly recommend having a gunsmith install the lower parts kit to prevent damage during installation. Unfortunately we do not have instructions or a video on how to install the kit.

Q: Does Stag Arms use large pin or small pin?

A: We use the industry standard small pin. The trigger and hammer pins are .154" and the takedown and pivot pins are .250"

Q: Am I able to purchase a select fire parts kit?

A: We manufacture and sell full auto lower parts kits. They are restricted to police, government, dealers with SOT's, and owners of M16's only. For owners of M16's, please call our sales office at 860-229-9994 x1, we will need a copy of your NFA form 1 or form 4.


7 Reviews

  • 5
    Outstanding craftsmanship

    Posted by Doug on 3rd Jul 2021

    Parts fit together almost too well. But by all means it performs flawlessly.

  • 4
    Very nice option for upgraded trigger

    Posted by Daniel E. Lieneck Jr. on 17th Aug 2020

    This is a very nice parts kit. The 2 stage trigger delivers as promised and breaks cleanly at 4.5 lbs total abd has an excellent reset. The finish of the parts like the safety is also great.

    My reason for 4 stars is my kit was missing the trigger guard roll pin and contained 2 roll pins the size for the forward assist. I had another on hand so did not contact Stag but I have no doubt they would send to me. It was just inconvenient that it was missing.

  • 5

    Posted by Anthony B on 12th May 2020

    Sweet trigger! I seen the reviews and said to myself, self, this trigger comes with a build kit and has good reviews let’s give it a try. To my amazement this trigger is a keeper. I will buy another.

  • 5
    Best LPK on the market

    Posted by Chuck Moulis on 13th Nov 2017

    Great LPK. All parts were free of burs compared to other kits I've purchased. The two stage trigger has one of the best feels of any non custom drop in trigger system on the market today.
    The ambidextrous fire control switch option is a great way to finish your build.

  • 5
    2 Stage Match Trigger

    Posted by Amen Firearms Inc. on 5th Nov 2017

    First came across this trigger in my Model 6. I've been ordering them for almost all of my customer builds. I've installed plenty of Timney, and Geissele triggers. None have felt as good as my Stag model 6 though. It shoots a ragged hole, no matter how many rounds you send down range.

  • 5
    Love It!

    Posted by Mike on 6th Oct 2017

    I have 2 rifles with this trigger and I recommend it to anyone building an AR. The fact that they offer the lower parts kit with the upgrade now is a huge bonus. The first comment from anyone who shoots my rifle is, "I love that trigger!" Great value.

  • 5
    Great feel

    Posted by Anthony Savage on 6th Sep 2017

    Very crisp smooth trigger pull and very well priced. considering most places want 120 just for a 2 stage trigger group. This is a great deal for a whole LPK.