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300 BLK boreguide???

Re: 300 BLK boreguide???

Maybe I shouldve been a little clearer, I am looking for an AR15 style boreguide that fills the upper. This is the one I use for my AR's in 223.

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Re: 300 BLK boreguide???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CNC</div><div class="ubbcode-body">Hmm, will the regular 556 AR guide not work? </div></div>

Hole is too small for the 30cal jag to pass through.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rkaires</div><div class="ubbcode-body">I got mine from Sinclair Int. </div></div>

Thanks for the headsup. Are you using the 7.62x39 model in your 300 blackout? I figure it may work but I am not sure due to the fact that the 7.62x39 case has a larger diameter than the 300.
 
Re: 300 BLK boreguide???

if you have access to a lathe you could chuck up a JP bore guide and drill out the hole to fit.

Or maybe you could use a bolt action bore guide (Just the tube) with some spacers to center it in the AR upper..?