Interesting! I have not seen those before... If I was to guess however, I would think they are an attempt to align the feeding path better. Some mags have a bit of wiggle in any receiver be it AR or otherwise, and in the 22lr ones it can lead to misfeeds if the angle of the ammunition changes from one round to another. I've used a dot of 5 minute epoxy on the back of magazines to correct this same thing, and just sanded until they are a snug fit.
I'd also suggest sanding/filing the tabs down, BUT I'd go at it slowly and evenly to sand them down only the minimum amount necessary as I'm virtually positive those little tabs are there to snug up your magazine.
Very cool, and let us know how it goes!
Will any Barrel Torque tool and vice block work with these receivers?
Will the Magpul Bev block work?
Thanks
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Can u please explain why you think a barrel torque tool puts less stress on a on a upper I have been trying to wrap my head around it. The way I think of it is, the barrel extension pin slides into the slot on the upper and the barrel nut is not putting any force on to the barrel to make it want to twist, the force is on the upper making it want to turn with the barrel nut. soo by using a barrel torque tool it’s just holding the barrel from turning, all the force that there is would be is on the pin on the barrel extension because tighting the barrel nut will make the upper want to twist with it. I totally understand for putting on a flash hider or muzzle brake i would use barrel torque tool. Sorry fairly new to building.
Thanks
Brodie
That was my first thought as well. But I've found out that is not the case. Firstly, if you degrease the barrel extension flange and the front face of the receiver, this allows the friction between the barrel flange and the front of the receiver to hold the barrel nut and receiver in place when the majority of torque is applied. As a result the pin shouldn't put much force into the slot, as majority of the resistence is from the friction between barrel flange and receiver front. Thats what I read, I verified that even though I've put a lot of torque(higher than recommended), the index pin doesn't cause any deformation inside the slot.
I want you to be pleased with your purchase, so do not hesitate one bit to ask questions before purchase! If we do decide to go forward with payment, I assume that you are satisfied with all info provided before payment. This is a polite as-is disclaimer.
I ship at least once a week on my day off.
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Last edited by langfordbc; 02-02-2020 at 12:31 AM. Reason: delete
Always interested in USGI M1911/M1911A1 Colt, Ithaca, Rem. Rand, US&S, Rem. UMC, Springfield Armory, etc... pistols or parts.
has anyone tried the new Cross Industries Mags in their modern sporter yet? How is the fit?
I found that my hera mags were pretty tight.