The front screw under the sight spring came out very easily. The head of the rear screw was completely destroyed, but no damage or marring on the gun. Had to blast it with a heat gun for a while and hammer a screw driver into the head to get enough grip. That was all after letting pen oil soak in for a few hours.
Not seeing any clear visible signs of thread locker. Might have just been friction from where the bottom of the counter sink head screw is digging into the top of the rear sight spring.
Now that it's out, here's some specs as I measure them, incase it helps someone later. Bottom of the head is countersunk, thread pitch M 0.7 , nominal length ~5mm to 5.07mm, 3.93mm for the outer diameter, diameter of the head is 7.23mm. A M4-0.7x8 machine screw with counter sink head fit perfectly in mine as a replacement. Use a few coats of cold blue to colour match it.
Choke that came with it has 3 notches, so that should be a modified choke.
Last edited by The Cocker; 04-23-2020 at 11:55 AM.
I enjoy firearms and firearm accessories.
Can someone show complete disassembly pics or even better a complete YouTube video??
Would be interested in one if I could confirm same quality as before......
I'll try to remember next week. I have to take it apart when I get something in the mail. Can take some pics of the inside of the receiver, bolt, slide rails, bolt carrier, exterior finish, etc. There's some sharp edges on the inside, and it was a bit rough until I pumped the daylights out of it. Smoothed up pretty well, and I'm still overall very happy with it for the price, it compares favourably to my 2005 870 express, it's pretty close.
Last edited by The Cocker; 04-19-2020 at 08:12 PM.
I enjoy firearms and firearm accessories.
In my opinion they ruined the Griz 14 with ghost ring sights, would never buy another unless they went back to a bead sight.