Do the Math [.22 LR conversion kits for the AR-15]

Shooting Illustrated ^ | July 30, 2010 | Chance Ballew / Photos by Les Jones

[cornfedcowboy]

Crossbows are fantastic. Accurate and quiet.

[NavyCanDo]

You could relate well with this guy

The I Like Guns music video....

http://www.youtube.com/watch?v=-TC2xTCb_GU&feature=player_embedded

[Dayman]

My wife will only shoot a .22LR. I love to build AR-15’s so I built her an SP1 style rifle with a light barrel then put a Ciner conversion bolt in there. She loves it.

FTF/FTE’s are very rare with her rifle and usually occur due to a lack of lubrication. Every 50 shots or so I give it a blast of Remoil and it keeps humming along.

[gundog]

Great minds...

[gundog]

Remington is making a .22LR CB round that’s as quiet as a powerful air rifle out of a rifle length barrel. And they feed manually from a 10-22 magazine, which CB longs will not do.

[gundog]

OK...only question the article didn’t answer for me was whether this was blowback or gas operation. I’d think there was potential for serious crap building up in the gas tube either way.

[Eagle Eye]

Boating accident? Something like that.

One should never try to transport several firearms, ammunition, and reloading equipment in a jon boat. Dammit. I feel so foolish in retrospect.

Neptune and his minions sure are lucky.

[archy]

OK...only question the article didn’t answer for me was whether this was blowback or gas operation. I’d think there was potential for serious crap building up in the gas tube either way.

They're blowback. Note that some of the .22 pistol versions of the AR, such as S&W's MP15.22, work just fine without a buffer tube or carrier rweturn spring. the same is true of most of their full-length brothers, excepting the USAF M262 training conversion, which indeedc has provision for the miniscule amount of gas from the .22 round to be vented through the barrel's gas port into the front of the conversion.

[archy]

I only tried the .22 unit once and was pleasantly surprised how well it worked. Since the H-Bar at the time had a 1-7 twist which is way faster than the 1-16 the .22LR normally uses, the accuracy really did surprise me.

The .22 conversion units work very well in the Vietnam-era M16A1 and Colt commercial SP-1 AR-15s with a 1:12 twist barrel. I put a couple of dozen of our local Civil Air Patrol cadets through a qualification program with them, and the top four were then treated to a session at the Small Arms Firing Course at the national matches at Camp Perry, Ohio, One's gone on to become a USAF sniper and another's qualified expert while at the USAF Academy at Colorado Springs.

Not bad for a bunch of zoomies....

[archy]

Boating accident? Something like that.

One should never try to transport several firearms, ammunition, and reloading equipment in a jon boat. Dammit. I feel so foolish in retrospect.

See! If you'd only slit the end of a 2-liter plastic pop bottle with a hacksaw, then hoseclamped the bottle on tightly onto an AR15s flash suppressor, it would have kept your rifle afloat. and happily, the high sight line of an M16/AR15 keeps the sights more-or-less clear, depending on the bottle configuration and brand of liquid used.

Of course with the .22 kit, it'd also function as a sound suppressor, but then there'd be a hole in the end of the bottle and it wouldn't serve as a float so well....

[Lurker]

That trick actually works. And if you use Standard Velocity .22 lr just about all you can hear is the ‘clack’ of the action in a 10-22.

[Sir_Ed]

However you’d have just manufactured an illegal suppressor and could theoretically be sent to prison for 20 years!

Ed

[Lurker]

I never said I did it, just that I know it works.

[Eagle Eye]

Yes, those lessons are a day late and a dollar short or closing the barn after the horses are out.

That’s the way the ball bounces, the cookie crumbles, and the mercedes benz.

So now I’m left with nothing but memories. Oh well.

[yarddog]

It seems that over stabilizing a bullet works better than under stabilizing them.

My first job was managing Mitchel Hall at Lackland. There wasn’t even a landing strip there. Daddy worked at Eglin for 35 years about as different as two bases can get. He would sometimes fish .45 auto mags out of the trash. I never could tell there was anything wrong with them but several were for a 6 shot .45 auto. Never did know what that was.

[Sir_Ed]

Oh, I know that!

I was commenting on the absurdity of CIII laws.

See ya’,

Ed

[joelt]

Thanks for the tip. I’m not a gun owner; but the way things are headed, probably going to need one. Seems it would be a good own to get started on and one that the wife could be comfortable using.

[archy]

My first job was managing Mitchel Hall at Lackland. There wasn’t even a landing strip there. Daddy worked at Eglin for 35 years about as different as two bases can get. He would sometimes fish .45 auto mags out of the trash. I never could tell there was anything wrong with them but several were for a 6 shot .45 auto. Never did know what that was.

Now you know: United States Pistol, General Officers’, Caliber .45, M15