This is an M4 22 LR rimfire Upper Conversion Kit, Mil-Spec size for the use with AR-15/M16 firearms. The kit features complete upper with a barrel designed specifically for 22LR ammo. It includes all necessary parts for converting your existing caliber to the inexpensive 22LR rimfire. The conversion takes less than one minute and is achieved with no permanent alterations to your firearm. It also includes two 28-round mags.
Please Note: This description may represent a general group of products. Please read the item's title and specifications for more specific information about this particular item.
Gauge/Caliber : Flat Top Upper Receiver Assembly
Length : 22 Long Rifle
Model : A2 Front sight
Chokes : 16"
Sights : 4140 Steel
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Submitted By: John M. On 01/24/2013
Very nice upper for the $. fit nice and snug to the lower. I had it in the box along with a stripped lower and a lower parts kit. They all went together without an issue. Too bad you just can't find them anywhere now!
[5 of 5 Stars]
Submitted By: Kenneth P. On 12/05/2012
Item priced right and makes it possible to make the use of a standard AR lower. Quick change from one caliber to another in less than 5 minutes and you are shooting cheap 22lr ammo.
Shoots great and the mags are easy to load because you can compress the spring and just drop ammo in. Only thing that would help the buyer is better description of the product. Upper receiver is composite not a metal product.
[5 of 5 Stars]