Rock River Arms AR-15 Lower Receiver Parts Kit - Single Stage Trigger

SKU: AR0120
MPN: AR0120
Manufactured by Rock River Arms
32 Reviews

$70.00

In Stock

"We ship fast!" Order by 4PM CST M-F or 11AM CST Saturday and your order ships same day. FFL items may take longer to process.

$70.00

In Stock

Details

The Rock River Arms lower parts kit comes with everything you need to finish your AR-15 lower receiver. Every component in this lower receiver kit is Mil-Spec so it will work in any lower receiver. Whether you are building a new AR-15 rifle or setting replacement parts aside for the future in case something breaks, this RRA lower kit is the one for you. It is affordable and even comes with a trigger and pistol grip to fully finish your build.

Kit Includes:
  • A2 Pistol Grip Black
  • Trigger
  • Hammer
  • Disconnector
  • Selector
  • Bolt Catch Spring
  • Detent Spring
  • Bolt Catch Button
  • Take Down Detent
  • Bolt Catch
  • Magazine Catch Spring
  • Bolt Catch Roll Pin
  • Magazine Catch Button
  • Magazine Catch
  • Front Pivot Pin
  • Hammer Spring
  • Trigger Spring
  • Pistol Grip Screw
  • Pistol Grip Lock Washer
  • Selector Spring
  • Detent Selector
  • Hammer Pin
  • Trigger Pin
  • Take Down Pin
  • Buffer Retainer Pin
  • Buffer Retainer Spring
  • Disconnector Spring

Specifications

BrandRock River Arms
Manufacturer.Rock River Arms
PlatformAR-15

Ratings & Reviews

32 reviews

4.8

Great!

by -

Very pleased with this purchase. Fit and functionality with my stripped Anderson lower is great. I didn’t like the pistol grip but I had different plans for that before I ordered this kit.

Missing part

by -

Excellent quality parts, however I received two bolt catches and no safety selector.

Nice LPK but missing a piece.

by -

Very nice parts kit with a good trigger. Fit and finish was great and had zero issues putting everything into my lower. However the trigger guard was missing the plunger so I had to use another trigger guard. I contacted Primary Arms who contacted RRA on my behalf who never responded. I also attempted to call RRA with no answer, for that reason I am subtracting a star due to the manufacturers poor customer service.

Very nice

by -

It was a very solid LPK for any build, the trigger has a nice reset for the price.

Excellent Quality

by -

Building a complete AR, ordered this part kit and was amazed. The trigger is super smooth for a mil-spec trigger. Everything was excellent and high quality. I would recommend this parts kit to anyone looking to build a high quality build. You can't go wrong with Primary Arms. Their customer service and fast shipping is exceptional.

Perfect

by

This is more then I needed, but I bought it that way intentionally. With this I have some really good spare parts that fit and function great. Would recommend buying it.

Excellent

by

Smooth when I squeeze the trigger.

They had it in stock!

by

l ordered the same part from my local store and still is not in. Good prices and ships quick.

Rock River

by

Good price on lpk. Fast shipping and smooth pleasent transaction. Deal with confidence.

Good value lower parts kit.

by

I ordered this kit along with a forged Seekins lower and DS Arms buffer tube/stock kit to put together a lower for an Adams Arms upper I got around Christmas. The parts in this kit were well made and went together with no major problems. Once minor problem I did run into was that the pistol grip screw that came with this kit was a 3/16 allen style screw and I didn't have a long enough allen wrench to fit through the grip base. But, rummaging around in my tool box, I ran across a Torx socket that fit this screw well enough to get it tightened down properly. Other than that, no problems with the build and I went to the range today to try out my newly built lower and it ran like a scalded dog. I am very happy with the lower I put together from parts ordered from PA. Later on down the road, I will probably upgrade the trigger to a better quality one such as the CMC drop-in, but the trigger that comes with this kit isn't terrible.

Rock River Lower Parts Kit Single Stage Tigger

by

Very good quality and it went together well. Would buy this again.

YAYYY!

by

Received this within 5 business days. Tracking was easy. The overall procedure of purchase was easy. My billing and shipping address were not the same and they even called to verify that it is ME making the transaction. They are always there when you call.

Very solid

by

Went together very smoothly. All of the peices were well lubricated and tight fitting, would buy this parts kit again.

Nice

by

Quality parts, assemble well would buy more in future.Fast shipping

Nice

by

Quality parts, assemble well would buy more in future.Fast shipping

Rock River Lower Parts Kit Single Stage Trigger AR

by

Very good parts kit. Great price & service from Primary Arms!

it works

by

sitting in the safe waiting on some stuff to come back from adco but have one in my RRA already and works fine

Great Value

by

The Rock River Lower Parts Kit with Single Stage Trigger is a great value. This complete kit is good for immediate installation or as a spare parts kit. I ordered it from Primary Arms who shipped it immediately for less than $5!

Great Service

by

Very quick processing and shipping. Would def order from you again.

LPK

by

Great, fast shipping, just what I wanted

Well worth the money

by

I have bought other cheaper part kits and did get the quality that I found in this kit. All parts were in the kit to build up my lower and primary arms did an excellent job about shipping my order promptly. Spend the extra 10 bucks it's worth it.

Rock River Lower Parts Kit Single Stage Trigger AR

by

Primary Arms delivered as advertised. The lower parts kit kit was complete and was sold at a fair price. I placed my order at 7:00 PM on a Sunday evening and I was notified by e-mail at 9:00 a.m. Monday that my order was in the mail. They have outstanding customer service and a good selection of parts and supplies. I placed a second order from them last week and it came in todays mail. I will be doing more buisness with them in the future.

trigger group

by

Haven't taken time to assemble yet. Checked out the parts everything looks great.

Rock river lower parts kit single stage trigger

by

Great deal

great,missing rear take down

by

guess rock river didn't inspect it close enough cuase it was missing rear take down pin replaced by PA. also the pistol finish was dull was also replaced by PA. thx primary arms for your great custmer service.