Lower Receiver Parts Kit with Right-Handed Selector

(10 reviews) Write a Review

Our lower receiver parts kit  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.


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
  • Semi-auto Trigger
  • Semi-auto Hammer w/ J-pin installed
  • Semi-auto safety selector (Right Hand)
  • Takedown pin
  • Trigger Guard (Aluminum)
  • Trigger Guard Roll Pin
  • 2x Trigger/Hammer Pins
  • Trigger Spring

SKU: STAG300531


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.


10 Reviews

  • 5
    Lower Receiver Parts Kit

    Posted by DAVID MITCHELL on 16th Apr 2021

    The quality and fit I have come to expect from STAG Arms.

  • 5
    Great standard parts kit.

    Posted by Jason Ward on 3rd Apr 2021

    If you a looking for a great quality standard mil spec parts kit this is the kit for you. Great price

  • 5
    Everything fit and worked as expected

    Posted by Brad on 11th Jan 2021

    I have used this kit for several builds on both Stag and Troy lowers and there were no issues; fit and finish was good and worked as expected.

  • 5
    Lower parts kit

    Posted by James on 5th Jan 2021

    All arrived prompt and well packaged. the lower parts kits are complete with the grip and trigger.

  • 5

    Posted by Matt on 17th May 2020

    My stag LPK was put into my rifle in 2014, the selector was a little tight and took some use to really move freely, however I expected a little bit of a break in period; that's just how tolerances work. Standard grip, nothing to write home about but it doesn't flex and has not broken.
    Aside from that, 6 years thousands of rounds still strong. Approx 1mm of creep (not soft and squishy but a swift pull to lock up), then a strong crisp break with a consistent duty weight pull, reset is positive and consistent. Even with this milspec pull weight I can hit sub moa and out run my carrier thanks to the tight action and clean break. No change in the consistency over 6 years, I am thoroughly impressed for the price.

  • 5
    LPK kit

    Posted by Al on 6th May 2020

    All went in without a problem. Good stuff.

  • 5
    Trigger Group

    Posted by Rick on 6th Apr 2020

    Excellent product, no problems.

  • 4
    Lower parts kit

    Posted by Zane on 10th Nov 2017

    This is my first AR build. I think a set of instructions would have been helpful. However thanks to YouTube I was successful in my endever. My only other minor complaint is that the pins that hold the upper are not as smooth as the pins on my factory rifle. All in all a good kit for a good price. I would recommend it.

  • 5
    Very solid parts

    Posted by Peter K on 1st Aug 2017

    Everything went up great on the non stag lower I bought.

    Came with bonus rolled up roll pin (which I didn't notice 'til after I had the split roll pin in) and an extra mag catch.

    The parts all seem very high quality and feel great on my build. I was expecting the trigger to be crap since everyone says mil-spec triggers are terrible, but I really like it. Mine feels crisp and light. Granted I'm now the proud owner of one and a half guns, so I'm no trigger snob. Still, though. Great kit all around.