ar-15 lower receiver parts kit

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CMMG .308 AR Lower Parts Kit

In stock

$ 79.99

Quick Overview

SKU: 29331
UPC: 852005002097

The kit includes:

  • .308 takedown pin
  • .308 receiver pivot pin
  • 2x takedown pin detent
  • 2x takedown pin detent spring
  • Bolt catch
  • Bolt catch plunger
  • Bolt catch screw
  • Bolt catch spring
  • Buffer retainer
  • Buffer retainer spring
  • 2x hammer and trigger pin
  • Hammer spring
  • Trigger spring
  • Disconnect
  • Disconnect spring
  • Magazine catch
  • Magazine catch spring
  • Magazine release button
  • Safety selector
  • Selector detent
  • Selector detent spring
  • Lock washer Pistol grip screw
  • Hammer
  • Trigger
  • Pistol grip

Add To:

Cmmg .308 AR lower parts kit includes everything you need to assemble your stripped .308 lower.


This parts kit will fit the following lowers.

  • DPMS
  • Remington
  • Bushmaster
  • CMMG
  • Fulton Armory


This kit WILL NOT work with the following lowers.

  • Armalite
  • LMT
  • LWRC
  • POF
  • PSA PA-10
SKU: 29331
SKU 29331
Department AR Parts
Brand CMMG
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 29331

Questions and Answers

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Browse 1 question Browse 1 question and 2 answers
Will this fit a PSA 10 gen 2 lower receiver ?
Jason J on Nov 12, 2018
BEST ANSWER: From CMMG: This LPK will not fit a PSA Gen II. It is designed for a DPMS Gen I. I know Gen2 DPMS is slightly smaller than Gen1. Our parts are based off of DPMS’s Gen1 pattern. Your best bet would be to contact PSA and buy another LPK that fits the GEN II.


3.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Love it, easy to install. PSA has been a good experience and I am sure that I will be ordering more from them.
June 17, 2019
3 months ago
Some of it fits, some of it doesn't. LPK $88, Addition parts $30+
" Yes and No. I went to put it together and the forward pivot pin did not fit. It was completely round, so it would not go all the way to the lower. Also, the detent would have held the forward pivot pin to far out. I will have to buy a pivot pin which is like $16 by itself. With the bolt catch, the pin had threads on them, so I was not able to install the bolt catch, I am going to have to buy an addition roll pin. With the rear pin, it was about 1/4 in. to long. So, I am going to have to pay $14 for a shorter rear pin to hold the upper receiver in the closed position. If you have a PSA Gen II this did not fit and you are going to have to pay $88 with shipping and then buy an additional $30+ in individual parts to fix what they messed up!! I woiuld recommend buying another Lower parts kit if you have a PSA GEN II. "
February 24, 2019
6 months ago

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