Description
If you've ever added an ambidextrous magazine release to your AR-15 and then fought with the factory bolt catch, you already understand the problem Forward Controls Design set out to fix. The ABC/R (Augmented Bolt Catch/Release) was purpose-built for AR15/M16 receivers running an ambi mag catch, where the factory lower paddle ends up crowded and hard to find by feel. This is the V3 rearward-biased version with serrated texture, machined from billet 8620 alloy steel and finished in black DLC.
What the ABC/R V3 Rearward Bias Actually Solves
Many ambi mag release paddles sit right next to the factory bolt catch lower paddle, which makes them tough to tell apart by touch, especially with gloves on. The ABC/R's larger angled top paddle and wider "butterfly" lower paddle give you more surface to press and keep a healthy standoff from the ambi catch's lever so the two controls stay on different planes. There's also a small notch above the lower paddle that gives you tactile feedback, so you can index the right control without looking down at the gun.
Why the Rearward Bias Matters
Forward Controls offers this catch in three upper paddle layouts, and the rearward-biased (RB) version is aimed at left-handed users who reach the bolt catch paddles with an extended left index finger. The upper paddle carries a 5 degree angle on the lower half and a 10 degree angle up top, which makes it easier for the palm or thumb to hit cleanly. The serrated texture keeps your finger locked in so it's less likely to slip off under pressure.
Built Right and Easy to Install
This is a machined billet part designed and made in the USA, and it ships with the bolt catch roll pin, plunger, and spring, so you have what you need to drop it into a mil-spec lower. Keep in mind the ABC/R is built around TDP-spec 5.56mm AR15/M16 receivers and isn't intended for Colt 9mm PCC setups or AR10B receivers. It also isn't compatible with CMT-based billet lowers, since the butterfly extension needs the bolt catch bosses to be spec with a proper corner radius.
Key Specifications
- Manufacturer: Forward Controls Design
- Manufacturer Part Number: ABC/R V3 RB, 5.56MM
- UPC: 682157948680
- Platform: AR-15 / M16
- Caliber: 5.56x45mm NATO
- Upper Paddle Option: Rearward Biased
- Texture: Serrated
- Material: Billet 8620 Alloy Steel
- Finish: Black DLC
- Color: Black
- Origin: Made in the USA
What’s Included
- ABC/R V3 Rearward Bias Serrated bolt catch
- Bolt catch roll pin
- Plunger
- Spring
Frequently Asked Questions
Who is the rearward-biased version of the ABC/R V3 made for?
The rearward bias (RB) layout is designed for left-handed users who reach the bolt catch paddles with an extended left index finger. The upper paddle is shifted toward the rear to match that reloading technique. If you shoot right-handed and press the upper paddle with your left thumb, the forward-biased version is usually the better fit.
Do I need an ambidextrous magazine release to use the ABC/R V3?
You don't have to have one, but the ABC/R was purpose-built to solve the crowding you get when an ambi mag catch sits next to the factory bolt catch lower paddle. The wider butterfly lower paddle keeps a standoff distance from the ambi catch's lever so the two controls stay easy to tell apart by feel. It works on a standard lower too, you just get the most benefit when running an ambi mag release.
Does the ABC/R V3 come with the pins and spring to install it?
Yes. This bolt catch ships with the bolt catch roll pin, plunger, and spring, so you have the small parts needed to install it in a mil-spec AR-15/M16 lower. Installation is the same process as a standard bolt catch, and a roll pin punch and a strip of tape to protect your receiver make the job easier.
Will the ABC/R V3 fit any AR-15 lower receiver?
It's built around TDP-spec 5.56mm AR15/M16 receivers and fits most standard mil-spec lowers. It is not compatible with CMT-based billet lowers, since the butterfly extension needs the bolt catch bosses to be spec with a corner radius. It also isn't intended for Colt 9mm PCC receivers or AR10B receivers.





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