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Questions & Answers
Pic 2 cap states it is “compatible with .308”. We compared the AR-15 with AR-10 & there are significant thickness/dimension differences. Type-O? Expert Answer

According to the manufacturer the Cross Armory Big Bolt Catches crBBC is compatible with both AR15's and most AR10 style rifles. However, they do not list compatible AR10 rifles. Please email us at techsales@opticsplanet.com for more information.

by Hunter, Gear Expert, February 23, 2023
The Smith and Wesson M&P 10 (.308) comes with an ambidextrous mag release and bold stop from the factory. will this be able to function along with... Expert Answer

The Cross Armory AR-15s .308sBig Bolt Catches might work for an M&P10 in .308. However, since dimensions and specifications between AR10 rifles vary I recommend contacting Cross Armory to confirm compatibility with your rifle.

by Hunter, Gear Expert, August 2, 2022
Customer Reviews
Helpful Positive Review Perfect for lefties by Jones, October 26, 2020
Got this thinking it would work well for my left handed ar15 build and it gives you enough space to hit your extended mag release without getting in the way. If you're a lefty highly recommend throwing this on your build
2/2 found this helpful
Helpful Negative Review does not fit aero 308 lower by Josh, July 9, 2020
The listing is extremely misleading, claiming universal fit for billet and polymer 308 lowers. It does not fit an aero 308 lower. May work for an ar15 as the first review, but be weary if purchasing for a 308
3/3 found this helpful
Most Recent Reviews poorly made by OpticsBuyer, Verified Owner, October 10, 2024
I reied this for an AR10 and various (3) AR15 lowers and it would not fit properly to function. Complete waste of money. For an AR15 lower its too fat to fit in the catch slot. For the AR10 it is still anug and the overall width of the catch is po...
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Most Recent Reviews Should be a list by DE, Verified Owner, April 17, 2024
There should be a list of compatible AR’s, this will not fit on a Aero Precision AR 10 platform. The screw starts to go then hangs up. No amount of giggling will seat it. I like the configuration, but it just won’t go in at least for me
Most Recent Reviews Does NOT Fit Aero M5 Lower by Jim, Verified Owner, July 9, 2021
Seeing a previous review that is also correct. This does NOT fit 308 ARs. At least not my DPMS High Aero lower M5 receiver. Should be fine on mil-spec AR-15's but not on my Brownell's BRN-180 or Aero EPC either for what it's worth!
3/3 found this helpful
Most Recent Reviews good and over built but miss leading by Jordan Hunt, Verified Owner, May 4, 2020
I bought this for an ar10 build. It does not work. At least for an aero ar10 lower. It was flush against the ar10 lower and didnt pivot at all. This is the only reason I didnt do 5 stars. I put it on one of my ar15 lowers and worked great. It is a li...
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Read All 6 Reviews
Gun Model: AR-15 Fabric/Material: Steel Caliber: .308 Winchester Color: Black Finish: Black

Code: 32E-BCR-CRSARM4-CRBBC

MPN: crBBC

UPC: 617566986954

List: $51.99Save 13%
$44.99

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Product Info for Cross Armory Big Bolt Catches

Interrupt your shooting stance to take better shots at any distance when you activate the Cross Armory Big Bolt Catch. Built from a one-piece design, these AR15 Parts developed by Cross Armory are easy to install and offer maximum control from your ready position. Working universally across all AR-15s, .308s, and polymer and billet lower receivers, the Cross Armory BBC Universal Bolt Catch significantly improves the speed and efficiency of reloads. Fitting both right and left-handed shooters with their preference of reload speed, this all-encompassing accessory makes your shooting experience more efficient. Making your shooting experience better isn't a difficult task when you have the Cross Armory Big Bolt Catch.image

Specifications for Cross Armory Big Bolt Catches:

Manufacturer: Cross Armory
Gun Model: AR-15
Fabric/Material: Steel
Caliber: .308 Winchester
Color: Black
Finish: Black
Length: 2.25 mm
Projectile Caliber: .308 Caliber

Features of Cross Armory Big Bolt Catches

  • Extended, AMBIDEXTROUS bolt catch designed specifically to work with SAFE MAG 2 and SAFE MAG .308
  • Maximum control from ready position
  • Fast, easy installation
  • One piece design for strength and reliability
  • Universal fit for AR-15s, .308s, polymer and billet lowers
  • 4140 Ordnance Steel with Type III Hard Coat
  • RELOAD EASIER without awkward hand change overs
  • Significantly improves speed and efficiency of reloads

Package Contents:

  • Cross Armory Big Bolt Catches

Cross Armory Big Bolt Catches Orderable Models

List of Orderable Models

Cross Armory Big Bolt Catch AR-15s .308s, Steel, Black, Small, crBBC , MPN: crBBC , UPC: 617566986954 , Code: 32E-BCR-CRSARM4-CRBBC
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