Gun Report

ArmaLite M15A4 Carbine No. 15A4CBA2K 5.56 NATO, $1031

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Looking very much like the Rock River rifle, the ArmaLite had a hidden beauty in its superior accuracy. Despite a hefty 7.2-pound trigger, the rifle shot very well for us. For extended field use, we’d like a better trigger, and of course less weight. This one worked perfectly, just like the other two.

ArmaLite M15A4 Carbine No. 15A4CBA2K 5.56 NATO, $1031

Gun Details

Model Name
Model Number
Home Defense
Law Enforcement
Caliber Plus Cartridge
Weight Unloaded
Length of Pull
Action Type
Action Finish
Barrel Finish
Trigger Pull Weight

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We've got the action door closed. Is the bolt forward or back? We'd like an easy way to open those doors without cycling the bolt.
The Picatinny rails have numbered notches, which some will find useful. There are versions of this rifle with four rails around the forend, for a variety of optional add-ons.
All three had essentially identical flash hiders. All were made of steel, and though the manufacturing processes may have been different, they all ought to work equally well. From left are the Rock River, ArmaLite, and Bushmaster.

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