ncstar sks trimount receiver with rail

can you drill into the receiver through those 4 screw attachments on the tri rail mount and screw the cover in?? pain in the ass for cleaning, but might make it stable enough

you could but if the tabs arent tight over the reciever then it wont hold zero after cleaning anyways, and you need to go with a fine thread pitch which could differ from what the mount comes with. Seems like alot of work, drill and tap reciever mounts are the way to go. LawrenceN's mount was the inspiration to do mine, you can make them from damn near anything from angle iron to shotgun side saddle mounts, or buy the choate kit and off you go. Then there is no f**king around with it for cleaning and no worries about losing zero. And really, the ones LawrenceN and I made cost less than the reciever cover mounts
 
I would definitely prefer the choate/custom made method but do not have a workshop to build them in or a drill press for properly tapping the receiver
 
Personally I would buy the Side mount for the sks then buy a weaver base mount and put whatever scope u want on it or red dot. Interammo has all the required product if u want to go that way.
 
it can be done very carefully with a hand drill, provided you keep the drill verical. Thats how I drilled the pilot holes before switching to the drill press. with the cover mounts, has anyone tried using the same method as a scout scope mount by tightening one side of the set screws first, then the other side? you tighten the same side first every time and it pulls the mount to that side for some repeatability. it could work, but again, more work than drill and tap
 
well since I want to experiment a bit with my sks, might give the self drill and tap solution a shot, if money was plentiful, then the interammo solution would be perfect
 
you could but if the tabs arent tight over the reciever then it wont hold zero after cleaning anyways, and you need to go with a fine thread pitch which could differ from what the mount comes with. Seems like alot of work, drill and tap reciever mounts are the way to go. LawrenceN's mount was the inspiration to do mine, you can make them from damn near anything from angle iron to shotgun side saddle mounts, or buy the choate kit and off you go. Then there is no f**king around with it for cleaning and no worries about losing zero. And really, the ones LawrenceN and I made cost less than the reciever cover mounts

agreed. It isn't worth shagging around with the tri rail mount I did consider drilling and tapping the 4 holes and using machine screws, but if you didnt tighten them all up perfectly it would be off zero.
 
I would definitely prefer the choate/custom made method but do not have a workshop to build them in or a drill press for properly tapping the receiver

I drilled and tapped mine by hand, just go very, very slow and use lots of lube. You will also need a cobalt bit ($8.00 at CT) or better and a tap. The only place I could find the tap was at Cabelas for $17.00. I broke the bit twice and the tap once so be prepared to repair both if they do. The Choate mount is very solid and is a good investment. You won't be sorry.
 
I just got a more standard allen key fastner at the machine shop..... then a standar tap... the ones shipped with the choate are junk....
 
The choate kit uses 8-40 machine screws, I used 8-32 on mine. The bits and tap all came from princess auto and were not expensive. HSS bits will have a hard time cutting through the hardened steel reciever so definetely go with cobalt, use low speed and firm pressure with lots of cutting oil.
 
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