Kane Gun Chaps?" Nope! But maybe heard of "Pole Dance Chaffing". Believe it was "Larry the "Cable Guy" describing. Now 'that' might be worth research! Wonder if I could get a Gov't Grant?
Oh yea... As far as fancy stock condoms, why not just get a plastic stock and be done with such worries! Of course, you'd miss the ultimate humor of "KGC zipper failure" on a pump gun...! (Any association with "Pole Dancing" proximity failure, strictly coincidental!)
Best!
John