Empty Cocking Slot Gasket

Bartok5

CGN Ultra frequent flyer
Super GunNutz
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Hi All,

I recall there being quite a bit of discussion surrounding the increased vulnerability of firearms such as the M+M M10X to foreign matter entering the operating system and compromising reliability. The theory is that ambidextrous firearms such as the M10X with an uncovered cocking slot (on the unused side) are susceptible to crud entering the action of the weapon through said slot. Examples of rifles with this supposed flaw include the Bushmaster ACR, the B+T APC223, and the IWI X95 in addition to the aforementioned M10X. The ACR and APC223 both prevent the entry of foreign matter by maintaining a tight seal between the Bolt Carrier and the Receiver. For the IWI X95 and M10X a gasket of sorts is required if one wishes to "dirt/mud/snow/sand-proof" The receiver as much as possible without interfering with the function of the firearm. For those with OCD like me who ponder such things, I offer an inexpensive but effective solution.

Simply use MLOC Slot-cover "Grip-Strips" as a cut-to-length gasket. The width of the MLOK backing is perfect for a friction press-fit into the unused cocking slot on either firearm. Both types of MLOC Rail Cover pictured in the last photo will work to fill the empty cocking slot on either the IWI X95 or the M+M M10X. They do not interfere with the internal operation of th e firearm. While I acknowledge that this may be a solution in search of a problem, I clearly recall there being quite a bit of stress over uncovered cocking slots at the time. Here is a low-cost solution for those who care about such things.


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It sure as hell put a dead stop to my wk180c
I like to test the upper limits on rifle designs. I was shooting it in the winter at minus 30.
Dropped her in the snow just to see how it would do.
One too many little bits of snow into the action and down into the trigger assy and rifle was N/S instantly. Had to strip it and clear out the trigger assembly with a knife.
I've done this with almost every gun I owned on top of other stress tests. The only one that seems to actually slough it off was the AR15s be it dirt, dunking in the muddy drainage ditche's at my club, snow etc
What I've got from this over the years is that rifle design reliability has a lot less to do with mechanical design as it does just keeping debris out of the action/feeding system and the trigger assy (the ak47 is BAD for that one especially)
The AR excels at this. With the ejection port closed its virtually sealed. Actually the last one to do very well was the type 81 as long as the bolt is forward. It's actually very well closed up surprisingly. The Chinese knew what they were doing alright.
 
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