7.62mm ABC/R v3 is incompatible with 5.56mm spec AR lower receivers.
ABC/R has finally made its way to 7.62mm, LR308 pattern ARs. ABC/R v3 has incorporated refinements and lessons learned since the ABC/R (v1, 5.56mm) was introduced in early 2015 and v2 (2017 to 2020).
ABC/R version 3 differs from v2 in the paddles design. V3 features a ledge on top of the upper paddle, and bottom of the lower paddle for increased traction. Due to the non-standard based nature of 7.62mm AR platform, many of 5.56mm ABC/R v3's features would introduce incompatibility issues on 7.62mm ARs.
Please note that though the ABC/R v3's upper paddle is angled and tapered, and we have tested it on upper receivers with a small, oval shaped bolt catch paddle cutout, such as found on DMPS's LR308 upper receiver, the upper corners of ABC/R v3 7.62mm may come in contact with receivers and mar it in two small places inside the cutout.
These are cosmetic only, they don't affect the functionality of the bolt catch. For receivers with a generous bolt catch paddle cutout, such as Rainier Arms, Mega, F4 Defense, etc. there is ample clearance for ABC/R
v2, 7.62mm.
Machined from billet 8620 alloy steel and heat treated with DLC finish. The ABC/R v3 is proudly designed and made in the USA.
Starting from June 15, 2018, bolt catch plunger and spring are included.
For more info on the dimpled
ABC/R-AA, please follow this
link ABC/R-AAPlease note the ABC/R was not designed for use on 9mm receivers that use Colt 9mm magazines which require a Colt 9mm bolt catch.
Incompatibilities:
KAC SR25LMT Defender .308 and MARS-H
Armalite AR10B2A Armament Xanthos
PSA PA10
Mega
New Maten (we never encountered issues till 2020) may need the back of the lower paddle modified to work as shown:
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WARNING: This product can expose you to chemicals
including metallic nickel, which is known to the State of California to
cause cancer. For more information, go to www.P65Warnings.ca.gov.
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