Dumb I know, but

[ray1377]

There is a ton of talk about putting a marauder trigger group, either the rifle or pistol on a 1377 frame.
I want to know can you do the reverse and put a 1377 trigger frame assembly on marauder rifle Gen 2?
Crazy I know, just curious if someone has tried it.

Thx
Ray

[Rick67]

I don't believe I've seen a Gen 1 MROD trigger assembly attached to a 13xx tube, which is substantially smaller than a 22xx's.

If I had a MROD I'd most likely try its compatibility with the 22xx/13xx trigger assembly, but it could be too much disparity in radius, although looking at the MROD TA fastened to a 22xx size tube you could see the difference in radii yet the tandem does work mechanically.

[ray1377]

I don't believe I've seen a Gen 1 MROD trigger assembly attached to a 13xx tube, which is substantially smaller than a 22xx's.

If I had a MROD I'd most likely try its compatibility with the 22xx/13xx trigger assembly, but it could be too much disparity in radius, although looking at the MROD TA fastened to a 22xx size tube you could see the difference in radii yet the tandem does work mechanically.

Richard
I never even thought about the radius of the two air tubes being different. I was mainly thinking about the spacing on the trigger frame mounting screws and if they would match up to be a "bolt-on" process or be way off and not fit.
But you brought up a good point.
Thx
Ray

[Back_Roads]

 TKO has a nice trigger kit. https://www.tko22.com/section7

[Rick67]

I don't believe I've seen a Gen 1 MROD trigger assembly attached to a 13xx tube, which is substantially smaller than a 22xx's.

If I had a MROD I'd most likely try its compatibility with the 22xx/13xx trigger assembly, but it could be too much disparity in radius, although looking at the MROD TA fastened to a 22xx size tube you could see the difference in radii yet the tandem does work mechanically.

Richard
I never even thought about the radius of the two air tubes being different. I was mainly thinking about the spacing on the trigger frame mounting screws and if they would match up to be a "bolt-on" process or be way off and not fit.
But you brought up a good point.
Thx
Ray

Mr. Ray, I did a bit of simulation using one of my flashlight bodies with a 31mm OD (MROD tube OD is about 31.8mm), pairing it with a 22xx TA with an OEM sear-----the works-----and it shows a big gap (an mm or so) in the middle, so the problem would most probably be sear engagement, not the difference in radius. If you bolt it on, there would be no problem in structural integrity with regards to the platform.

[ray1377]

I don't believe I've seen a Gen 1 MROD trigger assembly attached to a 13xx tube, which is substantially smaller than a 22xx's.

If I had a MROD I'd most likely try its compatibility with the 22xx/13xx trigger assembly, but it could be too much disparity in radius, although looking at the MROD TA fastened to a 22xx size tube you could see the difference in radii yet the tandem does work mechanically.

Richard
I never even thought about the radius of the two air tubes being different. I was mainly thinking about the spacing on the trigger frame mounting screws and if they would match up to be a "bolt-on" process or be way off and not fit.
But you brought up a good point.
Thx
Ray

Mr. Ray, I did a bit of simulation using one of my flashlight bodies with a 31mm OD (MROD tube OD is about 31.8mm), pairing it with a 22xx TA with an OEM sear-----the works-----and it shows a big gap (an mm or so) in the middle, so the problem would most probably be sear engagement, not the difference in radius. If you bolt it on, there would be no problem in structural integrity with regards to the platform.

Mr. Richard
I wonder if there would be a way to increase the sear engagement? That sort of makes sense because putting a marauder trigger on a regular crosman airgun required the use of a spacer, so I guess the sear is higher on a marauder trigger group.

Thx
Ray

[Rick67]

Probably if one could manufacture a sear with a taller sear “anchor”.

I’m curious though if it would work as is with a 22xx TA or a PROD TA.

[OTmachine]

IMHO, It would be easier to modify the trigger group housing to fit, whether it be by machine or file.

[Rick67]

IMHO, It would be easier to modify the trigger group housing to fit, whether it be by machine or file.

Yes, file the sides maybe for a closer fit.

Nice suggestion 👍

Zamak is a very soft alloy; would be a breeze to lap it.

[ray1377]

Well I answered my own question I guess. I took the stock off my .22 synrod and dug around in some old parts boxes until I got lucky and found a 1377 grip assembly. Turns out it won't fit. My synrod is a Gen2 and the holes don't line up on the 1377 grip assembly, they are not long enough. The Gen 2 has quite a long trigger housing and it's a good 1/4 to 3/8 of an inch longer than the 1377. So that squashed that idea

Thx
Ray

[Rick67]

Oh, a Gen 2 

[OTmachine]

Well I answered my own question I guess. I took the stock off my .22 synrod and dug around in some old parts boxes until I got lucky and found a 1377 grip assembly. Turns out it won't fit. My synrod is a Gen2 and the holes don't line up on the 1377 grip assembly, they are not long enough. The Gen 2 has quite a long trigger housing and it's a good 1/4 to 3/8 of an inch longer than the 1377. So that squashed that idea

Thx
Ray

Could you perhaps make an adapter plate that would allow fit and better placement?