KAK Industry LR-308 Double Ejector Complete Bolt Carrier Group

Manufactured by KAK Industry
Manufactured by KAK Industry
6 Reviews

In Stock

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With a reputation for precision manufacturing, KAK Industry offers quality, American made components at affordable prices.

The LR-308 complete bolt carrier group features double ejectors for more reliable function. Crafted from 8620 carpenter steel, the bolt carrier is nitride finished, inside and out, for superior corrosion resistance. Designed to function with .308 Winchester, 7.62 NATO, or similar cartridges.

  • 7.62 NATO/.308 Winchester
  • Double ejectors
  • Magnetic particle tested
  • Nitride finish inside and outside
  • Forward assist serrations
  • Correct auto sear trip location
  • 9310 steel bolt
  • 8620 carpenter steel carrier
  • Includes O-ring extractor helper to run under all conditions
  • Compatible with DPMS forward assist or rear Aero style forward assist
  • Weight: 18 oz
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Bolt FinishSalt Bath Nitride
Bolt Material9310 Steel
BrandKAK Industry
Caliber Gauge.308 Win
Carrier FinishSalt Bath Nitride
Carrier Material8620 Carpenter Steel
Carrier StyleDPMS Pattern Carrier
High Pressure TestedUntested
Magnetic Particle InspectMagnetic Particle Inspected
Weight18 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

6 reviews

  • 4 stars
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  • 1 star
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by -

Bought this to go in a Ghost Firearms build (all purchased from Primary as well). Everywhere else online, guys are swearing by this bolt carrier group, for the fact that it has the double ejector, and tends to work well (in hindsight, reviews across the web for this thing are about 60/40, in favor of the bolt group).
Upon putting it in the rifle, it looked, felt and just overall seemed like a good decision. As i got to messing around with it, and letting it slam into battery (lock with empty mag, hit release for test of function) it got stuck.
A few shop hours, and a couple hundred bucks later, my gunsmith informs me that the bolt itself had not been milled properly. He fixed it, and it's smooth as butter now. That being said, i'd have been better off getting a little more expensive, reputable bolt from the get go. Keeping it though, as it is now custom fit/function to my exact rifle.

Form, maybe Fit, bit not function


It looks well made. I however had issues with it from the get go. I have a dpms 308 12.5" barrel, slr rifle works adustable gas block and the jp capture / silent spring system... couldn't get relaible cycling. Borrowed a dpms 308 bolt carrier group from a friend... no issues. Shopping at PA for a carrier group now.

Quality BCG

by -

Nice and tight. No bolt wobble. Quality parts. Zero failures to eject. Runs nice and smooth after break-in. It will be stiff out of the package. A good sign. Lube it up and work the bolt by hand a hundred times.Then install and rack it gently a hundred times. Do a few full slams from bolt hold-open. Clean and re-lube. Check headspace. You're ready to shoot.

Worth the $$$


This KAK bcg replaced an AIM bcg. Since putting this in with its dual extractors, function and reliability are 100% in my rifle. Suppressed, unsuppressed, it just functions. I also like the black nitride for helping with function.

Worth it!

by -

Had a 6.5 CM with ejection issues. This BCG fixed all that! Price was very competitive so all and all would recommend!!

Kak 308 double ejector bolt

by -

Fit and finish are great, works smooth and ejects 6.5 cartridges 15ft. Heard some complaints not true here bolt works as expected. Thanks for carrying the best products!