.22 conversion kit

[melloman]

Who makes a good one that will fit a Bushmaster without modification? The CMMG kit says to "use a rounded-style hammer, because notched hammers can cause function issues." Since I have no idea what the difference is in hammer types, I am looking for a drop in kit that works reliably. It would be nice to shoot my AR without chasing my brass across the back of the firing line.

[cuppednlocked]

I have a Ciener kit and use black dog machine mags. Spikes, CMMG, etc are variations of the Ciener. I believe Spikes has stainless parts for better operation. I have a notched hammer IIRC and have not had issues. I did polish the feed ramp with polishing rouge to prevent FTF/stovepipes.

[jjones]

I have a couple of the usgi conversion kits, they work good in my rifles.

[Orlando]

I have a couple of the usgi conversion kits, they work good in my rifles.

Are those still availble? They should work great with the 1:12 twist in my Retro AR's

[jjones]

I don't know if they are or not, I've got 2 or 3 with several mags that I have had for a while now.

[Rush2112]

DPMS makes the rounded-type hammers, and IIRC, Rock River makes the notched profile.
some kits work w/ the notched hammers, while others wont.
if the kit recommends the rounded, I'd go with that

http://media.midwayusa.com/ProductImages/Medium/852181.jpg http://media.midwayusa.com/ProductImages/Medium/485437.jpg



did you know or do you care.....

drop ins are cheap and fun to shoot,
but if accuracy is important, the optimal twist for most .22 is 1/16

[Orlando]

Dedicated uppers are 1:16 but with drop in conversions you are limited. Heck there are just plinkers anyway

[Rush2112]

yeah, Tac Sol has some nice uppers -
one that basically mimics the M4, and another that has a Hogue free-float tube that's really light.
(these require the DPMS hammer, and work better w/ a lighter hammer spring)
they are a little spendy, but accurate enough to compete.


just can't load the mags quick enough [dough]

[cuppednlocked]

Have you tried the BDM drum? I've only seen the product demo online but it seems to work. It's juskt a little pricey for me.

[melloman]

If memory serves me, I think that my AR has a 1:8 twist. Bad for stabilizing .22 I assume?

[Rush2112]

...my AR has a 1:8 twist. Bad for stabilizing .22 I assume?
I wouldn't say bad, maybe not "optimal"
maybe minute of rabbit or beer can
many have the faster twists and still have tons of fun :-)
also good trigger-time for those new to the platform

IIRC, mini-mags, stingers and the hyper-velocity rounds cycle the best,
the subs are single shot....



not a must-have, but definitely high on the list!
ymmv