Rock River Arms AR-15 Lower Receiver Parts Kit - Single Stage Trigger
- A2 Pistol Grip Black
- 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
Ratings & Reviews
Absolutely OUTSTANDING fast service! made the order around 12:30 in the afternoon, had an email notification just a few hours later that the order was ready to ship. thank you so much. price, parts, everything was great.
by Garrett Duncan
Everything installed very easily and functions perfectly and as always unbeatable service from PA.
by dennis timmons
Everything worked great
by richard barber
everything Worked Out Great With This Kit!
Exactly what I was expecting, everything fit perfect like a puzzle. Can't wait to complete my build!
First Rate Service
by steven babeu
Excellent products,and a great dealer.Keep up the good work.P.A.
Excellent Lower Parts Kit
Extremely smooth LPK, no gritty feel. Definitely worth the price. Thanks PA!
rock river lpk
by Phillip Robinson Jr
First of all.....these guys are the only place that had the particular LPK in stock and ready to ship! I looked EVERYWHERE!! I ordered it on a weekend night(Saturday night), and in less than a week, it arrives here in the southern coal fields of W.Va!! AWESOME!!! I will definitely be doing more business with these guys!
by Dale Gann
Good price on lpk. Fast shipping and smooth pleasent transaction. Deal with confidence.
Rock river lower parts kit single stage trigger
by Michael Sampson
Great, fast shipping, just what I wanted
great,missing rear take down
by chinh phan
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.
Well worth the money
by Timothy MooneyTimothyM
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.
Good value lower parts kit.
by James G
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.
They had it in stock!
by Nathan Roseberry
l ordered the same part from my local store and still is not in. Good prices and ships quick.
Rock River Lower Parts Kit Single Stage Trigger AR
by Greg Edwards
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.
by Derrick Tucker
Quality parts, assemble well would buy more in future.Fast shipping
by Daniel Ahn
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.
by your name
sitting in the safe waiting on some stuff to come back from adco but have one in my RRA already and works fine
by Texas Tech
Smooth when I squeeze the trigger.
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!
Rock River Lower Parts Kit Single Stage Trigger AR
by Rk Swaim
Very good parts kit. Great price & service from Primary Arms!
Rock River Lower Parts Kit Single Stage Tigger
by Robert Babula
Very good quality and it went together well. Would buy this again.
by Justin H.
Very quick processing and shipping. Would def order from you again.
by Keith O
Went together very smoothly. All of the peices were well lubricated and tight fitting, would buy this parts kit again.