CMMG .22lr

[HALODIN]

Which BHOA do you have and does it tick all 3 boxes I listed above?

[John MH]

Be aware there are two versions of the CMMG BHOA.

[HALODIN]

OK thanks.

[froggy]

Be aware there are two versions of the CMMG BHOA
I did not know . How are they different ?

[John MH]

Minor modifications to the original, slightly thinner and chamfered metal parts. Also shipped with reduced power bolt catch spring.

[ulaughingatmymule]

Minor modifications to the original, slightly thinner and chamfered metal parts. Also shipped with reduced power bolt catch spring.

A Google search reveals that I have the old type of BHOA without the chamfered end. Must be why the Evo mags don't work.

[John MH]

Could be but easy enough to modify yourself, although who ever sold you the Evo Mags and CMMG BHOA should have made it clear.

[BamBam]

I feed my CMMG with the older style CMMG mags, I can't call them grey mags as I've dyed them black now.
The trick is never to run dry if you're shooting in a mini-rifle comp, more mags and change every time you move.

When I find out how to post pics I'll add one...

[BamBam]

Never mind, CMMG only makes the grey mags now and they've stopped making the BHOA.

[TattooedGun]

Year and a half later...?

I did notice that Lantac are about to start providing the new mk-4 CMMG