Seth --<br><br> I haven't used mine in 20 years (original AR-7), but it seemed to jam occasionally on everything I fed it, even after a return trip to the factory for attention.<br><br> Love the concept, but the execution wasn't what it should have been, at least on the old ones. May have been as simple as a clip feed gap error, or too weak a return spring on the bolt -- hope the new ones are better (www.ar-7.com)