CMMG Gunbuilder Lower Parts Kit MK3 - 38CA61A

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CMMG Gunbuilder Lower Parts Kit MK3 - 38CA61A

TEMPORARILY OUT OF STOCK

Quick Overview

SKU: 5165449976
UPC: 815835015415
MFR#: 38CA61A
  • Compatibility: AR-10
  • Finish: Black
  • Included: Bolt Catch Assembly, Magazine Release Assembly, Safety Assembly, Takedown Pins
  • Please note that not all 308 lowers are the same. The CMMG MK3 lower parts kit is designed to work with CMMG lowers, and are “Mil-Spec”. This parts kit is not compatible with PSA PA-10 lower receivers. .

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The CMMG Mk3 Gun builders kit includes most of the necessary parts to build up your lower group except the commonly upgraded parts. Does not include Fire Control Group, and pistol grip. Compatible with CMMG Mk3 Lowers and most LR308 type lowers.

Please note that not all 308 lowers are the same. The CMMG MK3 lower parts kit is designed to work with CMMG lowers, and are “Mil-Spec”. This parts kit is not compatible with PSA PA-10 lower receivers. 

SKU: 5165449976
SKU 5165449976
Department Build Kits & Parts Kits
Brand CMMG
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video p6AZ1jxJGRM
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449976

Questions and Answers

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Browse 4 questions Browse 4 questions and 3 answers
Will this kit fit my pa-10 gen2 lower?
David U on Dec 2, 2018
BEST ANSWER: After getting the run around on an actual answer to this question as opposed to a "This should work, if not you could just sell it" I got an official answer from Palmetto that this will NOT fit the PA-10 Gen 2 lower.
This is very disturbing...i just bought a psa10 and I feel as if i have been fooled...every AR10 part I see one this site seems to not fit this lower...what the heck is going on psa...whos idea was this?! I thought this paired with dpms parts...again i feel like I was fooled...
Lovell A on Mar 5, 2019
Will this work with a ks47 lower?
Timothy H on Mar 4, 2019
Hey I have a stripped Anderson arms ar15 receiver. Will this cmmg lower parts work/ fit my Anderson ar15 receiver?
Nathaniel W on Jan 24, 2019
BEST ANSWER: AR-15 parts and lowers are pretty much manufactured to the same specs. This means all AR-15 parts should work with all AR-15 lowers. Not so with AR-10s.

Reviews

2.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
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parts kit
great ar parts will buy again
August 18, 2019
Purchased
2 months ago
PSA PA 10 /308 lower parts issue
Seems The only 2 proprietary Part are the 1. Takedown Pin and 2. The pivot pins. You can use a CMMG 308 LPK to complete those 2 critical. I got My CMMG kit from Fountain Fire arms in houston, TX.
Pivot pin and Take down pin, 
You will use the detents and springs from the CMMG 308 LPK.
completed
February 9, 2019
NOT FOR THE PA-10
I must echo the frustrations of other buyers. I bought this specifically for a PA-10 lower.

Every time I buy a PA-10 part I find out that I need to buy another proprietary PSA part to make it work instead of the DPMS style parts I already have.

I'm just about to unsubscribe form the emails and be done with this company.
January 14, 2019
Do not buy this if you are trying to complete a PA10 lower
I will reiterate that this kit will not work on a PA10 stripped lower. Do not waste your money. I haven't tested all the parts but so far the bolt catch and the takedown pins do not fit.

I am still blown away that PSA does not have any warnings on this page stating that it will not work with their proprietary lower. I would understand if I rolled the dice and bought this LPK from another site and it didn't work. But I guess I'm the idiot for expecting PSA to sell compatible parts.
January 8, 2019

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