742 Conversion to Pump

J

jedimaster

Regular
Rating - 100%
4   0   0
Location
Probably at work. :(
Hey folks,
I really would not like to turn this into a feasibility argument, just a functional discussion.
When these places concert 742's to pumps, are they doing anything more than just blocking off the gas port, and fabricating the forearm to be attached to some sort of rail system and attached to the piston?

I know easier said than done but just a discussion.
 
I've never heard on such a conversion. Used pump guns don't usually fetch that much and would be a cheaper/better route to go.






.
 
jedimaster said:
Hey folks,
I really would not like to turn this into a feasibility argument, just a functional discussion.
When these places concert 742's to pumps, are they doing anything more than just blocking off the gas port, and fabricating the forearm to be attached to some sort of rail system and attached to the piston?

I know easier said than done but just a discussion.
Click to expand...

easier said than done ???

I don't think so... never heard of it being done...
 
Believe this riflesmith in the US offers the service



www.ahlmans.com/riflework.html

Rifle Action Work



Porting on magnum rifles $125.00
Alter bolt for low scope installation $50.00
Inlet altered bolt handle to receiver $15.00
Inlet altered bolt handle to stock $15.00
Install Low-Scope Safety (labor only) $30.00
Install Timney Trigger (labor only) $45.00-$75.00
Jewel (engine turn) bolt and follower $45.00
Modify Mauser receiver bridge to FN contour $45.00
Remove slack from military triggers $40.00
Remove slack from commercial triggers and tune $45.00 - $55.00
Remove military sights from rifle $40.00
Convert action to magnum capacity $85.00
Remove ears and re-contour 1917 Enfield receiver top $100.00
Fill oval hole on 1917 Enfield receiver top $40.00
Straighten floorplate on 1917 Enfield $60.00
3-4# Trigger Job $45.00-$55.00
Stamp Caliber on Barrel $30.00
Glass bed action & free float barrel on bolt action rifle $95.00
Pillar type glass bedding (using aluminum pillars, not epoxy) $175.00
Convert Remington 700 BDL to detachable magazine style
(parts extra)
$50.00
Convert Remington 700 ADL to detachable magazine style(parts extra) $90.00
Chamber Cast (you keep cast) $45.00
Cut/ Crown Barrel---Bolt Action $50.00
Cut/ Crown Barrel---Non-Bolt Action $50.00-$75.00
Re-line 22LR Barrels (includes liner) $150.00-$175.00
Re-Line Centerfire(25/20,32/20,38/40,44/40) $300-400
Convert Muzzleloaders to "Quick-Load" System $40.00
Install Swivel Set (swivels extra) $20.00
Drill/Tap for Open Sights (sights extra) $60.00
Drill/Tap for Front or Rear Only $40.00
Drill/Tap Receiver for Peep Sight (sight extra) $40.00
Install Tang Sight (sight extra) $50.00
Install Sako-type extractor $100.00
Extractor kit (for above) $39.99
Convert Rem. 742 to pump action
*above includes exchange of parts and Birch forearm*
$229.00
Full Length Barrel Fluting $150.00
Rem. 788 Bolt Handle Repair
(Weld-on new,improved style)
$119.00
Glass-Bed action and Free-float Barrel $95.00
Pillar-Bed action and Free-float Barrel $175.00
Steel-Bed action on M1 Garand $100.00
Cut 3/8" dovetail groove on 22's $50.00
Sight-In (100yds) $25.00(ammo extra)
Clean/Inspect Bolt actions $30.00
Clean/Inspect lever actions $50.00
Cowboy Lever Action Jobs $115.00



Handgun Work - Rifle Work - Shotgun Alterations - Stock Work - Stock Refinishing - Adjustable Comb - Custom Rifle Barrels - Muzzle Brakes - Checkering - Porting - Rebluing - Engraving



Home - Directions - Telephone - Shipping - Gunsmithing - Gun Parts - Rifle Range



Tim
 
I guess it is one way of making a semi auto more reliable... but why not just buy a pump to start with... :confused:

I have seen restricted semi autos converted to bolt actions to make them non restricted...
 
25 years ago I bought an m1 carbine at a gun show that had been converted to a pump action. I never really tried to figure out how it was done,but it worked beautifully.
 
it is what can be done to your 742 when it goes bad as a semi and still get to shoot it. an option i guess if you have a POL only and it is your only deer rifle and want to keep shooting.
 
Coulda sworn I started this topic with a disclamer not to get into the feasability of such an endevor the reasons for and agains are endless on both sides. I have no intention of doing it I was just curious about how it is done if anyone on this gunsmithing forum has done such a project. :)
I know its done and has been done many times, just wondering how thats all. To me stopping the gas from moving the piston is the first step, then having a manual way to move the piston back is the second second step. other than that I can't think of anything else that would need to be done. I am curious though as to why you couldn't just disable the gas port and just use the manual cocking handle to eject and cycle the rounds. why add a pump action to it?
 
jedimaster said:
I am curious though as to why you couldn't just disable the gas port and just use the manual cocking handle to eject and cycle the rounds. why add a pump action to it?
Click to expand...

You can... if the gas port is permanently welded closed, legally that makes it a bolt action (very small bolt handle) with a spring assisted closing...
 
This has been done. Removing the gas port and welding the small orifice closed is the first step. Removing the bolt from the action, the bolt latch would be removed along with the plungers and springs. As the action arms will no longer work, they too would be removed and a suitable set of pump action bars would need to be used as a replacement along with a wooden forend from a pump. As the later 760 had a threaded extension that was attached to the hanger stud, a modification would have to be made. The bolt dust cover and charging handle would need to be replaced as well.
I have modified 742 barrels for 760's but have never been able to locate a good supply of 760 parts to convert the 742. 760's don't usually break like the notorious 742.
 
You must log in or register to reply here.
Back
Top Bottom