JP Rifles' ASF-20 Ambidextrous AR-15 Lower Receiver

Doug E
by Doug E
Image credit: JP Rifles

JP Rifles introduced their ASF-20 Ambidextrous AR-15 Billet Lower Receiver in 2020, and it somehow slipped past the lidless eye of TFB. Ambidextrous, or ambi AR-15 lower receivers have been cropping up in recent years, which give shooters more flexibility in manipulating their rifle controls without having to shift the rifle to one side or another, or awkwardly reposition one’s hand regardless of which shoulder the rifle is up against. The primary benefits of ambi controls on an AR-15 would be for users that need to maneuver tight spaces, and thus change which shoulder they fire from, or to have a shared defensive rifle being used by left and right handed people. The following quote is from JP Rifles’ website regarding their ASF-20 Ambidextrous AR-15 Lower.

JP Rifles @ TFB:

ASF-20™ Ambidextrous Rifle and Lower Assemblies
The ergonomics and control of the AR platform have made leaps and bounds in the decades since the development of the original Stoner design. By incorporating some of the best into our design, the ASF-20™ gives both right- and left-handed shooters unparalleled control in a JP rifle. This receiver design combines the A-DAC™ (Ambidextrous Dual Action Catch) system from Radian Weapons with our own JP Ambi Mag. Release. The result is a sleek yet rugged receiver offering full ambidextrous controls for the left-handed shooter plus bolt lockback and release for right-handed shooters without releasing the pistol grip.

Whether for a versatile 3-Gun rig, hunting rifle or duty/defense system shared by multiple users, the ASF-20™ answers the call. The ASF-20™ is compatible with any Mil-spec pattern upper receiver to serve as the cornerstone of any rifle project. Whatever your need, we’ve made the ASF-20™ ambi lower accessible:

Fully custom, complete rifle paired with our JP-15™ upper receiver
Complete lower assembly compatible with any Mil-spec pattern upper assembly
Semi-Auto Chassis System bundled with a JP upper receiver and hand guard
Lower receiver with all proprietary component for the home builder

Image credit: JP Rifles
Image credit: JP Rifles

The following video is from JP Rifles’ introduction of the ASF-20 Ambidextrous AR-15 Lower Receiver, in which Ben and Dustin go over the features of the “Ambi Small Frame” ASF-20. The ASF-20 can be purchased by itself with the proprietary parts installed for $599.95, or can also be paired with other parts and uppers as a complete rifle. Click HERE for the ASF-20 lower only page, or HERE for further options.

You can follow JP Rifles on their Facebook and Instagram pages, or on their YouTube channel. What do you think about the relatively new ASF-20 Ambidextrous AR-15 Lower Receiver?

Doug E
Doug E

Doug has been a firearms enthusiast since age 16 after getting to shoot with a friend. Since then he's taken many others out to the range for their first time. He is a husband, father, grandfather, police officer, outdoorsman, artist and a student of history. Doug has been a TFB reader from the start and is happy to be a contributor of content. Doug can be reached at battleshipgrey61 AT, or battleshipgrey61 on Instagram.

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8 of 46 comments
  • Airwolf Airwolf on Jun 21, 2022

    I love jp rifles and have quite a few of their parts. That being said, they can kiss my nuts if they think I'm going to pay $600 for their lower receiver. Especially when it is billet instead of forged. Why on earth would anybody want this over an LMT, KAC, Radian ADAC, or ADM UIC at almost half the price?

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    • Alexander Hamilton Alexander Hamilton on Jun 27, 2022

      @Airwolf You can see this is a modified radian, the adac some other controls. Seems crazy to pay 250 more for a modified radian. I do love my radian lower, and is it worth the price at 360, nope, but all the highest end products have diminishing returns.

  • Rob Rob on Jun 21, 2022

    Not a fan of this particular ambi set up. If the bolt is not all the way forward or all the way back it blocks the right side magazine release. Just a quirk that other ambi set ups don’t suffer from.