Most complicated firearm you've disassemled

The Universal M1 Carbine. If I had a slag furnace I would have tossed it in.

A 1911. It was the first gun I ever decomposed but each and every one thereafter got much easier.

I wound up building my competition 45 that shoots 11/2 inch groups at 50 yards on a Ransom Rest.

It's not the disassembly, its REassembly that can be a pain.
Browning buckmark, colt woodsman, and ruger
For some reason, those .22 rimfire semiautos seem the hardest to me.

Buckmark comes to mind. I agree that some .22's are really a pain in the butt.

Ruger MKII

Way too complicated for a guy raised on both 1911s and Glocks. I couldn't reassemble it, so I sold it in pieces.

+1 on the Ruger MKII...holy crap...

Detail strip an H&K P-7. I double dog dare ya

I think anything Browning, M2, water cooled .30, buckmark, 1911. I think mr. Browning was a genius in his designs, but overcomplicated them.

C-96 Mauser broomhandle.

It took me a while to reassemble that one...

The

Mitchell 15/22.

I completely disassembled the action of a Marlin 795 once.

Once.

I needed two extra sets of hands to get it back together and lots of looking for pictures to figure it out.

Marlin 1894/5, which are very close to the same. I'm just not that ambitious when it comes to anything beyond a field strip.

M2 would get my vote, any gun that can kill you if you screw up disassembling it, is complicated

H&R 999. Hands down biggest pain in the rear evar!!!:banghead:

Ruger Mk1, Browning blr.

Colt Police Positive Special. In the middle of the woods. In my lap. With fading light. And one screwdriver. I somehow got the water out, got it all oiled and back together but I think the spirit was with me that day. Any spring that zipped out of my hand, any piece that fell, was going to be gone forever. And I think the innards of that piece were designed by a left handed blind watchmaker who studied under MC Escher.

Runner up to that was the Ruger .22 plinker which like others I found out should not be taken apart.

Ruger MKII, Took me a while to cross my eyes and figure out which side of my mouth to stick out my toungue and how far to get it back together.

Remington 742 total disassembly. Holy crap! What a pain to get that back together!!

Ruger MKII

Way too complicated for a guy raised on both 1911s and Glocks. I couldn't reassemble it, so I sold it in pieces.

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LOL! Where can I find more guys like you?

Try stripping an FN-AR... not for the faint of heart.

351 WINCHESTER said:

.Browning blr.

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Pin city!
A Browning A-5 is something.. just make sure you have a sweet screwdriver set.
And I disagree about the Browning comment (CSC_Saint).. they were/are elegant, not really "complicated", often one thing doing more than one thing.

Remington Nylon 66. It's where the term "gun in a bag" originated among gunsmiths. Take a look at an exploded diagram of one and you will be amazed.

Single shot 20 gauge.