Modern Sporter in .22 for small game?
- Thread starter robab
- Start date
- Location
- Red Deer, Alberta
The title says Modern Sporter, those have a Non Restricted FRT.
For a drop in kit like the CMMG, 18.6” will be the minimum barrel length. If you use a dedicated .22lr barrel (like the JP Enterprises barrel / BCG / Charging handle) the. You just have to keep OAL greater than 26”.
For a drop in kit like the CMMG, 18.6” will be the minimum barrel length. If you use a dedicated .22lr barrel (like the JP Enterprises barrel / BCG / Charging handle) the. You just have to keep OAL greater than 26”.
It’s not a 5.56 though.
It’s no different than what I’m going to do, which is use a 6.5 Grendel upper, for big game, and .223 for coyotes.
As long as you meet NR requirements ( barrel lengths)
And caliber restrictions for the game your hunting, there shouldn’t be an issue.
It’s the Lower that’s classified, not the caliber you use.
It's still a NR rifle so as long as you follow the hunting regulations for your province regarding caliber, cartridge length, and magazine capacity you should be fine.
No different than someone putting a bigger caliber upper on it to hunt big game as Brian mentioned.
I personally would rather hunt with something smaller and lighter but if you want to do it then go for it.
No different than someone putting a bigger caliber upper on it to hunt big game as Brian mentioned.
I personally would rather hunt with something smaller and lighter but if you want to do it then go for it.
Shorerider
CGN Regular
- Location
- British Columbia
My only concern would be accuracy. As a .223 or 5.56 barrel are both larger than .22 the bullet tends to bounce around a bit in there. I’m building a dedicated MS upper using a .22lr out of an existing AR-22 that I own with a .22LR barrel. The JP kit is nice but pricy. I didn’t pay that much for my whole AR-22.
The bullet should not bounce around in any barrel, unless you’re using the wrong ammunition... in which case, the bouncing bullet is the least of your concerns.
Shoot 223/5.56 out of the correct barrel.
Shoot 22lr out of the correct barrel.
No issues.
Shorerider
CGN Regular
- Location
- British Columbia
I was talking about the .22LR kits that have the chamber adaptor. The inside diameter of a .223 barrel is extremely close to .22 so it works otherwise they wouldn’t sell the kits. I wasn’t talking about shooting .22LR out of a 12ga shotgun. The slight difference in barrel diameter allows the smaller bullet to not spin on its own axis but an axis just slightly off centre causing the bullet to not spin tightly but more of a circle once it exits the barrel.
I have a CMMG 22 LR conversion kit in 1 of my ARs and it works very well. Accuracy is pretty good out to 50 yards, good enough that gophers would be extremely worried.
I plan to stick the kit in my MS once I have the upper just for gophers. I wanted to run it in my MV but the charge handle on that rifle will not work with the kit.
I've been thinking about something similar to this the last few days. If you used an upper with a dedicated. 22lr barrel and bolt (not a conversion kit in a .223/5.56 barrel) on your Modern Sporter, then as long as it met the 26" minimum, it would still be non restricted, no? One could make a very fun MK18(ish) setup and plink in the woods with full capacity rimfire magazines.
I’m doing exactly this, perfectly legal.
onetwentyish
CGN Ultra frequent flyer
- Location
- East Central AB (AKA Northern Texas)
Realistically for most of us the FA is only for looks to clone the AR's redundent design.
You can FA your bolt with your thumb where the port door recess is in the BCG, so the FA button was only to meet a brainless milspec req.
No as it will not engare the bolt anyway so why waste the money.
Thank you. I'm new to the AR platform and didn't realize this.
