nice bit of 40 year old tech few know about.

abrere

Member
May 28, 2018
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18
google for cienerfirearms .22lr conversion units for the AR15.

given the 60 gr subsonic Aquila .22 ammo (put up in .22 SHORT cases so that it will feed reliably from a box magazine, the gas system in the AR15 soaks up enough of the 22's expanding powder gases to be noticably more quiet than a normal .22lr. The subsonic load is also noticably less noisy than the regular "high velocity" ammo, because the latter is going fast enough to break the sound barrier, while the subsonic stuff is not. Put the 2 together, and know to fire the .22 AR unit left handed, while using your right thumb to hold the bolt shut, and the result is pretty quiet, while hitting as hard as a normal rd from a .22lr rifle, which will drop big cattle and horses, with brain hit, at 10m or so. or deer, hogs, dogs or men with such a hit at 50m, to temple, top of head, eye socket, or ear-hole. A fair amount of noise comes out of the ejection port of a normally cycling .22lr autoloader, along with the empty casing.

Naturally, if you dont let the bolt cycle, you'll have to manually cycle the
gun before you can fire the next shot. If you have a 10.5" barreled AR 15 pistol, you can have the "brace" that lets you fire it like a rifle, without having to pay the $200 tax to the feds, get fingerprinted and all that bs. If shtf, you can always add a real rifle stock in a minute or less. Just dont have such a stock on your property til then.

Given a silencer that adds just 7.5" to the OAL, the full charge 223 ammo is every bit as "tame" to use as the .22 unit is without the silencer. So you can do about 90% of your rapidfire and fast handling practice for 6c a shot, instead of 30c per shot. The .22 unit is welcome at indoor ranges, the 223 is not, because it damages most steel "backstops" (where the bullets impact downrange) This can mean that you dont have to drive 50 miles each way to train. That's saving you $40 or more per trip, counting your time.

The caliber swap takes just 10 seconds, the unit weighs 3/4 lb, fits nicely in the leg pocket of your cammies. It's $300, groups 2" or better at 50m, is reliable,and the .22 POI (point of impact) on the target at 50m is always within 2" of the 223 POI. Plenty close enough and accurate enough, for shtf foraging or "removal" of guard dogs, sentries, scouts, etc.

The flashider comes welded and threaded onto the barrel, but you can swap out barrels in half an hour, with common tools. You can also use a carborundum cutoff wheel (2 at a time, so they dont shatter in use) and a Harbor freight grinder ($15, to cut thru the weld and then screw off the flashhider. That's not illegal when the AR was made as a "handgun" from the start. If you finish the machining of an 80% finished AR15 lower receive (come in the mail, no serial number is required) you just stamp or engrave "handgun" on it and you dont need a short barreled rifle tax stamp ($200 and fingerprinting required to possess such) but you can't legally fit a 16+" barrel to it, either. Gun laws are retarded like that.
 
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pipe bombs will do better

Go big or go home ...

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