IIRC the 4516 no dash had some teething problems. Thats why the mags were changed and the slide was beefed up, and the step removed from the 4516 frame, resulting in the 4516-1.

That said, I fired around 500 rounds through a confiscated 4516 no dash at an LEO "range day". The "range day" was a once a year event where we used confiscated handguns/rifles to "destroy" ammunition that was in the property room inventory.

This 4516 no dash was filthy and bone dry. Some of the rounds I fed it were so old they had verdigris on the bullet. It went over 300 rounds in a few hours problem free. Then it started feeding slowly - BUT it still functioned.

I hosed it down with Breakfree and ran another 200 rounds through it, again problem free. Thats what convinced me to buy one.

Mine is a 4516-3, one of the last of the 4516's to be produced, and the VERY last S&W semi auto i would part with.

I advise you to buy it, shoot it, love it! Regards 18DAI.