450Bushmaster.net

Does anyone have experience with the various .22lr uppers. I am thinking for one for my Bushmaster lower for inexpensive shooting/squirrel hunting. How accurate are they ( I would be on the lower end of expense spectrum)? Do they involve any modifications to the lower?

Would a conversion kit be better than a dedicated .22lr upper? I don't have anything but the .450BM now. Which would have the accuracy edge, the dedicated upper or the conversion?

A little late here but the dedicated upper will have better accuracy. Though for around the same price you could get an M&P 15-22.

I did the same thing. Getting a .223 upper to practice with and a conversion kit for 22lr. The conversion kit is good if you can find 22lr with the .224 dia bullets. The CCI 22 AR tactical were good for accuracy but hard to get at a reasonable price ( < .10 cent a round). The .223 ammo is easier to buy but more expensive ( > .35 cents a round). With a difference of a quarter a shot the conversion pays for itself in about 1000 shots. The .223 upper will save you about 1 dollar a shot between the 450 Bushmaster ammo and the .223 ammo. I like to shoot the big bore but my shoulder and budget direct me to the practice with the smaller caliber. So, I ended up with the 450 for hunting, the .223 for outdoor practice, and the conversion for indoor practice. Just remember to allow for the sight difference. Have fun learning your trigger.

I bought a CMMG dedicated 22 upper a few years ago and it has been some of the best money spent. It is very accurate and extremely reliable. I've never had a failure to feed or eject. It is very accurate out to 50 yards and decent even out to 100 yards.

Awesome upper for the money. I set mine up as a twin to one of my .223 uppers. I can go from one to the other with virtually zero distinction feel.

one of the big perks to a shared lower - no matter the caliber really - is consistency of the use on the fire control group . This allows good trigger control practice no matter the caliber you're running on it.

if you get your scopes setup with ring heights that are very similar its also good in the sense that you're taking the same cheek weld on the same stock all the time too.

Thanks for the info. That is exactly what I was hoping to see

Dedicated uppers run circles around the conversions in terms of accuracy and maintenance.

MarkCO I've been on your web site and have been trying to find all the info I can on your upper. Actually, the reason I got on this site today was to ask if anyone had tried your uppers and if they were worth the money. My funds are tight these days, so it's hard to justify big money on an upper now. Is the forearm the same as the one you sell as an aftermarket addition?

Cutright wrote:MarkCO I've been on your web site and have been trying to find all the info I can on your upper. Actually, the reason I got on this site today was to ask if anyone had tried your uppers and if they were worth the money. My funds are tight these days, so it's hard to justify big money on an upper now. Is the forearm the same as the one you sell as an aftermarket addition?

Same forearm as we sell (Carbon Feather). Yes, they are expensive since we use all premium parts, and they are not for everyone. If you want a plinker, there are less expensive options. If you want one that will maintain function and accuracy when run hard and hot, then our upper is top of the class.