Mark II F Trigger
I recently bought the same gun from Wal-Mart. I think it is a great deal for the money and a great overall .22 if you don't mind a little light work.
I used weaver 48024 scope bases that I ordered from Amazon for $5 each (need 2). They fit perfectly w/no mods, out of the package.
The trigger feels like dragging an 8lb cinder block through gravel out of the box. I pulled it apart on day one and made some serious improvement by polishing the contact points on the trigger and sear with a piece of Scotchbrite. I also noticed that the contact points were dry, other than the thin film of preservative oil from the factory and used a toothpick to dab a touch of Slick50 grease on each friction point. Lastly, I shimmed the backside of the trigger with a doubled over soda can (bout .010", everyone says to go to .020"-.025"). That got me down to a much smoother and roughly 3lb pull.
The trigger still has quite a bit of side wobble and it is still 1 1/2lb too stiff for my taste. I got some stainless flat washers at Lowes to shim the gap between sides of the trigger and the housing (some suggest just squeezing the housing in a vice but I'm not big on that Idea myself). I'm also looking for a lighter return spring and planning to chamfer the hole the spring sits in, in the trigger (I can feel the coils catching a little on the edge of the hole). I'll post again and let you know how all that works.
Overall, I like the gun enough that I bought a Tac-Driver, Thumbhole stock from Richard's Microstocks for it and I plan to keep tuning the trigger and use it for my go-to target rifle.
If anyone knows the right part number(s) for the available metal trigger guard and magazine bottom plate kits, please post. I will need them when my new stock gets here.
Please let me know what you learn too. The parts are all out there but it is difficult to wade through the sea of misinformation to find them.
Last edited by mjt74436; 01-29-2011 at 09:17 PM.