Rock River Arms AR-15 Two Stage Lower Receiver Parts Kit AR0120NM.

The AR0120NM by Rock River Arms features their Two Stage Trigger group which generally improves accuracy by lightening and smoothing out the trigger pull. The weight of pull on these are factory set and usually around 4 1/2 to 5 pounds. The two stage trigger takes out the "unknown" point of fire from the trigger stroke. This kit also includes a basic black A2 pistol grip and it will work with any standard AR-15 lower receiver.
Rock River Arms 2 Stage Lower Parts Kit AR0120NM

The AR0120NM Two Stage Lower Parts Kit includes:

Black A2 Pistol Grip
Pistol Grip Screw
Pistol Grip Lock Washer
Trigger Guard
Trigger Guard Roll Pin
Two Stage Trigger
Trigger Spring
Trigger Pin
Hammer Spring
Hammer Pin
Safety Selector
Selector Spring
Selector Detent
Bolt Catch Spring
Bolt Catch
Bolt Catch
Bolt Catch Roll Pin
Magazine Catch Button
Magazine Catch
Magazine Catch Spring
Front Pivot Pin
Pivot Pin Detent Spring
Take Down Pin
Take Down Detent
Buffer Retainer Pin
Buffer Retainer Spring

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Comments (4)

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Good but not great. I know nothing about about either vendor but has this kit for $125.00 including shipping. Or the trigger on fleabay is $79 plus Joe Bob Oufitters has the RRA LPK minus the trigger for $40 +shipping (or free shipping over $90).

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I've ordered from, my 1 and only factory built rifle. Honest, great guy to deal with. At a time when RRA had a 3 month wait, he was able to advise which options would speed delivery, and still came in under $1k (back when any basic ar would run for $800+).

I was alright with the 2-stage, and like JP, the factory fit/ install is slicker than their drop-in. I have another of their 2-stage, though tame next to its Geissele neighbors, rolling on .155 KNS pins and JP springs, it holds its own.

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I ordered magpul sights from Tom's Tactical. Fast shipping and great price. If you want this product and the price is right for you, I believe Tom's Tactical is a good vendor.

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Thank you for the feedback about the vendors. This is very valuable information to me and it is why I enjoy this site so much!

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