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

Manufactured by Rock River Arms
SKU: AR0120
MPN: AR0120
Manufactured by Rock River Arms
33 Reviews
$70.00

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

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Details

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
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Specifications

BrandRock River Arms
ColorBlack
ManufacturerRock River Arms
PlatformAR-15
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

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Ratings & Reviews

33 reviews

4.8
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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.

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Missing part

by -

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

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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.

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Top of the Line, especially for 7.62

by

Excellent build kit. I've used CMMG, Strike, Anderson, CMC, Spikes, some others I'm forgetting. This is right at the top. Where it excels is when using for 7.62 builds, or if you plan on shooting a lot of steel-cased ammo. The hammer springs on every other kit I've used would give light primer strikes with steel cased 7.62. Some kits' springs would only light strike 1 in 10 rounds...some nearly every one. With RRA build kit and single stage trigger, never a single light primer strike. Not one. Can't recommend this build kit enough. Haven't tried the 2-stage trigger because I honestly prefer single stage triggers. Don't quite understand the appeal of spending hundreds on such a simple mechanism. Maybe I'm just a simp though...

If you plan on shooting 7.62 rather than blowing your wad on 5.56 these days, then purchase this build kit! Wish they offered this kit without grip though...

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