O.S.O.K.
10-04-2010, 11:03 AM
I've been posting this up in the general firearms forum but it's turned into a gunsmithing type project so I thought I'd post some about it here too.
I started with this: (Nebraska State Poleece trade-in from Bud's Gun Shop)
http://farm5.static.flickr.com/4127/4997213488_9ef94f02f4_b.jpg
Then did this:
http://farm5.static.flickr.com/4145/4998992515_21c712584d_b.jpg
I used 4 colors of Krylon ultra flat camo paints and sprayed through some open-weave fabric to get the "scales":
http://farm5.static.flickr.com/4146/4999788652_639fd4f1b6_b.jpg
Then, decided to add a Mo-rod (harmonic stabalizing gizmo) ( http://www.mo-rod.com (http://www.mo-rod.com/) ):
http://farm5.static.flickr.com/4110/5043398646_d54d4c15a9_b.jpg
I also installed a recoil buffer (1911 type) on the gas piston/op-rod spring - goes between the front of the receiver block and the spring/guide rod - very easy to install.
And finally, after doing some more research on accurizing these, I decided to bed the receiver:
http://farm5.static.flickr.com/4124/5051470240_52959221e7_b.jpg
According to reports, the two most effective accuracy mods are 1) bedding the receiver and 2) installing a barrel harmonic dampening rod.
This is actually the second application of bedding compound (used "Accuracy in a Jar" brand epoxy kit) - the first application only had a few contact points -there's lots of room in these receivers. This second application caused the bedding compound to ooze out of the "joints" indicating that it is making more contact...
I decided to do the bedding because with the fcg removed (which locks the receiver down) the receiver would move side to side in the stock about 1mm - which is a lot of slop...
So, after this sets up and I get it cleaned up, it'll go to the range for a test.
Other mods that I found recommended are shortening the barrel to 16" (which I don't want to do), installing a muzzle brake (I like the flash hider I have), firelapping the barrel (mine is very well broken in already) and replacing the gas block with an improved aftermarket one - which didn't seem to cuase any change in accuracy according to the reports - only decreased gas flow and recoil - which is silly IMHO given this is a .223.
I started with this: (Nebraska State Poleece trade-in from Bud's Gun Shop)
http://farm5.static.flickr.com/4127/4997213488_9ef94f02f4_b.jpg
Then did this:
http://farm5.static.flickr.com/4145/4998992515_21c712584d_b.jpg
I used 4 colors of Krylon ultra flat camo paints and sprayed through some open-weave fabric to get the "scales":
http://farm5.static.flickr.com/4146/4999788652_639fd4f1b6_b.jpg
Then, decided to add a Mo-rod (harmonic stabalizing gizmo) ( http://www.mo-rod.com (http://www.mo-rod.com/) ):
http://farm5.static.flickr.com/4110/5043398646_d54d4c15a9_b.jpg
I also installed a recoil buffer (1911 type) on the gas piston/op-rod spring - goes between the front of the receiver block and the spring/guide rod - very easy to install.
And finally, after doing some more research on accurizing these, I decided to bed the receiver:
http://farm5.static.flickr.com/4124/5051470240_52959221e7_b.jpg
According to reports, the two most effective accuracy mods are 1) bedding the receiver and 2) installing a barrel harmonic dampening rod.
This is actually the second application of bedding compound (used "Accuracy in a Jar" brand epoxy kit) - the first application only had a few contact points -there's lots of room in these receivers. This second application caused the bedding compound to ooze out of the "joints" indicating that it is making more contact...
I decided to do the bedding because with the fcg removed (which locks the receiver down) the receiver would move side to side in the stock about 1mm - which is a lot of slop...
So, after this sets up and I get it cleaned up, it'll go to the range for a test.
Other mods that I found recommended are shortening the barrel to 16" (which I don't want to do), installing a muzzle brake (I like the flash hider I have), firelapping the barrel (mine is very well broken in already) and replacing the gas block with an improved aftermarket one - which didn't seem to cuase any change in accuracy according to the reports - only decreased gas flow and recoil - which is silly IMHO given this is a .223.