Hey guys...check out the last photo in this article on a new improved AR-15 BCG. It includes a weight built into the bolt.
http://www.gunsandammo.com/rifles/surefire-optimized-bolt-carrier-assembly/
Dan
Moderator: MudBug
dantheman wrote:Hey guys...check out the last photo in this article on a new improved AR-15 BCG. It includes a weight built into the bolt.
http://www.gunsandammo.com/rifles/surefire-optimized-bolt-carrier-assembly/
Dan
RFE3 wrote:Hi everyone,
I hate to be Dr. Frankenstein and bring this threat to life again but I just got a new BCA 18" Upper in .450BM and am interested in doing this CWS mod to my Bolt. I found a place that has Crankshaft Counter Weights pre made in .625 Dia and 1.20" long and .23lbs (3.68oz).
Midwest Tungsten Service:
https://shop.tungsten.com/tungsten-crankshaft-balance-weight-0-625-dia-x-1-20-long-0-23-lbs/
They are relatively inexpensive at $30 each. I ordered 2 to play with. They fit like a glove in the Bolt, my only concern is that the are slightly under the 4ozs. battered about in this thread. My Question is if the slightly under 4ozs will acheive the desired results? There is still enough room in the rear of the Bolt that I could cut a piece off the 2nd one (about 5/16") and place it behind the first one. This would completely fill the opening in the rear of the Bolt and bring the weight to approx. 4.8ozs. I assume this would be too heavy.
If the std. 3.68ozs will work fine then I'll install it as is.
Many thanks,
Rick
Hoot wrote:RFE3 wrote:Hi everyone,
I hate to be Dr. Frankenstein and bring this threat to life again but I just got a new BCA 18" Upper in .450BM and am interested in doing this CWS mod to my Bolt. I found a place that has Crankshaft Counter Weights pre made in .625 Dia and 1.20" long and .23lbs (3.68oz).
Midwest Tungsten Service:
https://shop.tungsten.com/tungsten-crankshaft-balance-weight-0-625-dia-x-1-20-long-0-23-lbs/
They are relatively inexpensive at $30 each. I ordered 2 to play with. They fit like a glove in the Bolt, my only concern is that the are slightly under the 4ozs. battered about in this thread. My Question is if the slightly under 4ozs will acheive the desired results? There is still enough room in the rear of the Bolt that I could cut a piece off the 2nd one (about 5/16") and place it behind the first one. This would completely fill the opening in the rear of the Bolt and bring the weight to approx. 4.8ozs. I assume this would be too heavy.
If the std. 3.68ozs will work fine then I'll install it as is.
Many thanks,
Rick
I'd venture that as long as you're not running an already light BCA, that'll do just fine. Heck, even if you are... Your brass will thank you.
Hoot
RFE3 wrote:
Hi Hoot,
Thank you for the Reply...Nothing better than an answer from the man himself. Is your's still holding with the JB Weld after all these years?
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