First, let me thank all of you for allowing me to join the "Shockwave Asylum". The forum is excellent. By way of background, I've been shooting Mossberg pumps for 60 plus years without any major issues. In this old guy's opinion, Mossberg's quality and craftsmanship has remained consistent over the years. About two months ago I purchased a Shockwave as a work carry gun given we have black bears, mountain lions and bobcats around. While my initial impressions were good, the magazine was very hard to load and the gun would not cycle properly, especially on the second shell and beyond. Tried several ammo types (field loads, OO buck, slugs) and different brands to no avail. Field stripped the gun a couple of times and the problem appeared to be the elevator and possibly the cartridge stop. Subsequently contacted Mossberg and discussed these issues. They said that the parts were apparently out of spec and indicated there had been some issues lately. They promptly sent me a new cartridge stop, an interrupter, and an elevator assembly. Upon examining the replacement parts I noticed the elevator was very highly polished on the cartridge stop arm side and on the shell pickup's lower surface. The new parts have been installed and the original loading and feeding issues are resolved. Thanks to Mossberg for their assistance.
Just wanted to pass this info along to everyone since I've seen a couple of videos online where folks seem to be having difficulty loading their magazine. Dont know if anyone has had cycling issues but it appears the problem is the thickness of the elevator "arm" on the ejection port opening side. Polishing it to a high luster, which somewhat removes the uneven surfaces, seems to cure this issue. The original Shockwave cartridge stop also seemed a little "stiff" whereas the replacemenht appears to be more flexible; however, I think the original elevator assembly was the issue.
Overall, I've been very impressed with the Shockwave design. Previously carried a model 500 with an 18.5 inch barrel and 13 inch LOP outdoors daily on the tractors or when working in the woods. The Shockwave is an excellent substitute. Other than a sling my only add on has been grip tape to the handle which helps on wet surfaces. Regards to all!
Just wanted to pass this info along to everyone since I've seen a couple of videos online where folks seem to be having difficulty loading their magazine. Dont know if anyone has had cycling issues but it appears the problem is the thickness of the elevator "arm" on the ejection port opening side. Polishing it to a high luster, which somewhat removes the uneven surfaces, seems to cure this issue. The original Shockwave cartridge stop also seemed a little "stiff" whereas the replacemenht appears to be more flexible; however, I think the original elevator assembly was the issue.
Overall, I've been very impressed with the Shockwave design. Previously carried a model 500 with an 18.5 inch barrel and 13 inch LOP outdoors daily on the tractors or when working in the woods. The Shockwave is an excellent substitute. Other than a sling my only add on has been grip tape to the handle which helps on wet surfaces. Regards to all!
