AM-15 Complete Lower, Black Magpul – Open, RF85

Rated 4.00 out of 5 based on 3 customer ratings
(3 customer reviews)


  • Standard Mil Spec Lower Receiver
  • RF85 Treated
  • Open Trigger
  • Standard Magpul Grip
  • Anderson Lower Parts Kit
  • Black Magpul Pistol Grip & Buttstock
  • 6 position Buffer Tube Kit
  • This Complete Lower Receiver Comes With Parts Installed & Ready To Attach An Upper
  • FFL Required For Purchase

In stock

UPC: 640901517087 SKU: B2-K402-B000-R Category: Tags: , , ,


This Complete Lower comes RF85 treated. Which means, 85% Less Friction and 23% Faster Action! Your lower will never need oiling and cleans up with just soap & water! To learn more on the RF85 process, click here. This Complete Lower Includes a Completely Assembled Lower, Magpul Lower Parts Kit and Buffer Tube & Magpul Buttstock Assembly.

The AM-15 Stripped Lower Receiver is American made with superior quality for less! Our lower Receivers are CNC machined from a high-strength, 7075 T6 aluminum forging for reliable performance and outstanding durability. Machined to Military Specifications & Standards and marked “Multi-Cal” to be used with multiple calibers on the AR-15 platform. This Lower Receiver comes in type III black hard anodize, and an Open Trigger. Don’t over pay for the same lower receiver with a different logo and use your money saved elsewhere on your build! Pair this with one of our Upper Receivers for a solid fit for your AM-15 build!

A Federal Firearms License (FFL) is required to purchase this item.

Click here to submit FFL or you can

Email your FFL to [email protected] 

This Lower Receiver comes installed with our Magpul Lower Parts Kit for AM-15 includes the following: Bolt Catch, Bolt Catch Plunger, Bolt Catch Roll Pin, Bolt Catch Spring, Buffer, Retainer, Buffer Retainer Spring, Disconnect, Disconnect Spring,  Traditional Hammer (Black in Color), Hammer Pin, Hammer Spring, Magazine Catch, Magazine Catch Button, Magazine Catch Spring, Pistol Grip (Magpul MOE), Pistol Grip Lock Washer, Pistol Grip Screw, Pivot Pin, Pivot Pin Detent, Pivot Pin Detent Spring, Selector, Selector Detent, Selector Detent Spring, Takedown Pin, Takedown Pin Detent, Takedown Pin, Detent Spring, Traditional Trigger (Black in Color), Trigger Guard, Trigger Guard Roll Pin, Trigger Pin, Trigger Spring.

Comes Assembled with a Mil Spec Buffer Tube Kit. This includes: 6 Position Buffer Tube, End Plate & Castle Nut, and Carbine Length Buffer and Spring (Music Wire). Magpul Buttstock & Pistol grip also installed.

Additional information

Weight 3 lbs
Dimensions 15 × 6.5 × 1.75 in

3 reviews for AM-15 Complete Lower, Black Magpul – Open, RF85

  1. Rated 2 out of 5


    Received this with an upper parts kit as ordered. The upper parts kit came with two forward assist springs and no ejection port cover spring. I noticed this right away and Anderson sent me the ejection port spring.

    When I went to put this on my upper I noticed that the front pivot pin and detent were missing. I called Anderson and they said they would send me the parts. Well about two weeks later I received the parts. Still not the right parts. I received another ejection port cover spring but no front pivot pin, detent or detent spring.

    I haven’t been able to shoot it yet but I’m looking forward to it when I can get it put together. I have dry fired (with a block) to see what the trigger feels like. It was really rough long carrot break, but it’s not a $240 trigger so I wasn’t expecting it to be amazing. Some polishing made it way better. I like the RF85 markings with the Anderson logo on the barrel, charging handle, and bolt, looks good. I’m also looking forward to running a dry gun.

  2. Rated 5 out of 5


    This is an update to a review I left on 12/1. After 3 tries I finally received the right parts and Anderson’s CS was very responsive.

    Now the amazing part: (I put this together with an RF 85 upper from Anderson)
    I stripped and cleaned all the parts bone dry. Shot it for the first time today. Flawless function with zero malfunctions after about 200 rounds bone DRY. The M4 contour barrel held about 1/4 – 1/2 groups at about 30 yards (all the room I had) with an Eotec. I put a nice trigger in it, Anderson free float hand guard and a muzzle break. All my mates at training were amazed and 2 asked if I will build them one 2 others want more info. The RF85 is legit and the machining of the parts was tight and milspec (all milspec after market parts went in without any problem), zero play between the upper and lower.

  3. Rated 5 out of 5

    Shawn Ferguson

    Absolutely the best lower but it’s Anderson and RF85, so there’s no better in my opinion as a combat veteran/operator. What really amazed me was the upgraded SS LPK included in this build-very nice surprise-Thank you!

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