What do you do when you have a pile of HK91 mags you don’t know what to do with? Build a gun company that needs them! That is basically the story behind PTR Industries.
The gun itself, in all of its configurations, is about as reliable a .308 battle rifle as you’ll find. I have had rifles in this design since the 80s when Century Arms first brought in CETME rifles from Spain, which is where that design originally appeared. To this day PTR Industries is involved with the current CETMEs that Century sells, and I have one in for review now actually.
If you are not familiar with the HK-91, it is a roller lock action, not a gas system, so you don’t see them pick up the problems with fouling that you’ll find in a gas rifle, whether it be an FN FAL or an AR-15. The HK-91 doesn’t suffer any of them. It just runs and runs and runs.
You do pay for it a bit with recoil and muzzle rise. You are essentially shooting a fixed breech gun with a delayed unlocking of the action. It doesn’t kick like a deer rifle of the same weight, but it isn’t far off either. Much like a Benelli vs. a Beretta gas shotgun, the Benelli will beat the heck out of you shooting all afternoon, whereas the gas gun will feel much softer, an HK-91 is not fun to shoot at length, as opposed to a gas .308 AR design, an FAL, or even an M1A.
But who the hell can afford to shoot .308 all afternoon anyway?