Canadian Airgun Forum

Does any one know if the prod,1720,1701p tube have the same id as the 22xx,discovery tubes?Also does the transfer port hole in the prod,1720,1701 breeches line up with the 22xx,disco tubes.I also need need the od of the big section of the prod,1720,1701 bolt if they are the same size.I want to mount a 1720 with single shot tray breech onto my disco that will be .30 cal if I can ever get a barrel and be able to put a mrod shroud on it
Any help would be appreciated

_________________
Disco 177, lw barrel, Mrod trig
2250 hi pac hpa Prod trig
2260 disco valve,Mrod trig
2260 pumper prod trig
1377 metalist mellon air modded lw barrel
1760
1400
Benjamin classic aw stock
38t .22 first gen x2
38t .177 converted to .22

Yes, the tubes are all the same ID, 0.745".... I don't know about the transfer port location, the PRod breech is different than the Disco....

Bob

_________________
Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal; Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!

Thanks Bob
Yes The prod,1720,1701 breeches use 4 screws to attach to the tube.Looking at the diagram on crosman web site on these pistols the valves look the same as the disco but the transfer port is not inline with the valve retaining screw like the disco.The tp is further forward toward the muzzle on the pistol valves.Plus the pistol valves have 2 screw holes for the front breech attachment screws.

_________________
Disco 177, lw barrel, Mrod trig
2250 hi pac hpa Prod trig
2260 disco valve,Mrod trig
2260 pumper prod trig
1377 metalist mellon air modded lw barrel
1760
1400
Benjamin classic aw stock
38t .22 first gen x2
38t .177 converted to .22

That's a no-no. Shrouded barrel are usually frowned upon in Canada.

_________________
Facebook is like ancient Egypt, people write on walls and worship cats

You can’t buy a single airgun for everything. Golfers use many different clubs, airgunners need more than one gun

it seem the only shouded admited is the daisy red ryder

target man

_________________
9 mm cal,discovery pumper
.25 cal,crosman pumper

The RR isn't shrouded, the actual barrel goes to the end of the gun
The Benjamin Trail series are shrouded

_________________
Facebook is like ancient Egypt, people write on walls and worship cats

You can’t buy a single airgun for everything. Golfers use many different clubs, airgunners need more than one gun

The barrel will extend to the end of the shroud so as not to be considered a silencer like my 2260.

_________________
Disco 177, lw barrel, Mrod trig
2250 hi pac hpa Prod trig
2260 disco valve,Mrod trig
2260 pumper prod trig
1377 metalist mellon air modded lw barrel
1760
1400
Benjamin classic aw stock
38t .22 first gen x2
38t .177 converted to .22

There are 2 different types of shrouds that I know of.There is the barrel shroud which may completely encircles the barrel to prevent the user from burning the hand on a hot barrel but does not extend past the muzzle of the barrel.This is intended for a powder burner but on an airgun is purely cosmetic and not illegal in Canada.
Then there is the muzzle shroud that completely encircles the barrel and extends past the muzzle of the barrel.This would reduce the sound level of the gun and be considered a silencer in canada.This is NOT a no no,this is NOT frowned upon,Its illegal!!!
The way I intend to use the m rod shroud it will not extend past the muzzle of the barrel.It is intended to help make the 24'' barrel more ridged and cosmetically more appealling then having a little 15mm od barrel sticking out from the guns breech.The barrel/shroud combo will have the same od as the air tube.Im sure you have seen this done numerous times on this fourm and legal to do as it is not reducing the sound level of the gun.
Anyways thanks doc for taking the time to post and pointing that out.Very helpful.
http://en.wikipedia.org/wiki/Barrel_shroud
http://en.wikipedia.org/wiki/Muzzle_shroud

_________________
Disco 177, lw barrel, Mrod trig
2250 hi pac hpa Prod trig
2260 disco valve,Mrod trig
2260 pumper prod trig
1377 metalist mellon air modded lw barrel
1760
1400
Benjamin classic aw stock
38t .22 first gen x2
38t .177 converted to .22