Surprisingly smooth - Global Ordnance AK47 7.62x39 40 Round Rifle Magazine

Fit perfectly in my PSA GF3, even better than the factory mag. Fed reliably even when loaded with a mix of steel/brass cased fmj and sp ammo. Not enough rounds through it to speak on durability. My particular firearm and mag worked nicely together, for the price it's well worth getting. Packaging was a little chewed up but the mag itself was fine.