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Adjustable Gas System
for M1 Garand Rifle

(Complete Kit ready to install)
Replaces OEM gas nut

Adjustable Gasnut Kit for M1Garand

Click for larger view (44k)

NO GUNSMITHING
$44.95
 
+$10.50 S&H

Quantity:

 adjgasoutline.jpgChase Brass No More!

Complete Kit, ready to install
and no special tools required.

Kit includes: Gas Nut and 5 Jets

Adjustable Gas System Kit

Why do I need this device?

When Uncle Sam was buying the parts and ammo for Garand rifles it did not matter to anyone what they cost.

As a kid I can remember if you paid 65.00 for a mint Garand people snickered behind your back... boy how times changed.  A new gas cylinder will set you back twice that now an operating rod even more.

Originally, the old warhorse had to have a very powerful extraction and ejection cycle.  Ammo could be contaminated with sand, corrosion, soot from fires and so on.  So it was imperative to yank the cartridge from the chamber.  Now that the M-1 is no longer used as a battle rifle the forces applied no longer have the same relevance.  Look at it this way it's kinda like pushing your front door shut with a fingertip or stomping it shut with your boot.  It 's easy to figure out which is best and so it is for the Garand.  Every single part that moves when the gun goes BOOM takes less abuse with our gas system.  Parts you might not normally think about but here is a partial list the extractor lip pulls on the cartridge softer, bolt lugs rotate with less force, battering the bolt, receiver, cam in operating rod, wear plate  on operating rod, hammer face, sear pin, trigger, operating rod spring, hammer spring, hammer spring plunger, hammer spring housing, hammer pin and so on.  The operating rod sections are basically parallel but in off set planes.  Just for a moment when the gas collides with the piston face the rod bends/deflects slightly before it unlocks the breech.  Because the piston is fixed to the rod it cants slightly.  This movement if you could look at it in an end view turns the piston into an ellipse.  Meaning the piston essentially is no longer round in shape.  In theory the gas blow by will suspend or hold the piston in the center of the gas cylinder.  At first that looks and sounds good till you realize the gas is loaded with carbon and carbon is a great abrasive.

You as the shooter take less beating/recoil when the operating rod moves slower and the same thing with the bolt.  The reason being the operating rod slams into the front and the bolt slams into the rear of the receiver stopping them….The operating rod weighs 9 ounces and the bolt weighs six.  Think about this carefully we never calculated the speed of the bolt and rod but a very good guestimation is 400fps at this speed and weight the energy delivered to the rifle is 930 ft. lbs and 1400 ft. lbs. Respectively….If we drop the speed to 350 fps the energy delivered to the rifle drops to 710 and 1070.  This is quite a reduction and well worth the $40.00 our gas system costs.  You simply are hit with less recoil period!

Another advantage of our gas system is not having to chase the brass.  All shooters when at the range have had their head down and butts in the air picking up brass.  Lets say you have expensive hand tuned carefully prepared match brass.  And don't want it getting lost or damaged by being bounced off a concrete pad or rocks or disappearing into tall grass or snow you can remove the gas jet.  And turn your rifle into a straight pull bolt action.  When the jet is removed and the rifle won't cycle….the brass stretches less, the rim takes less abuse, you can fire any bullet weight and use any rifle powder because what you now have as stated above is in effect a bolt action.  So no operating rod damage is done whatsoever.
 


Great Alaskan BodyBag

Great Alaskan
BodyBag

$12.00 
+$10.50 S&H

Quantity:

S

M

L


shirts-300

TEAM McCann T-Shirt
$12.00 
+$10.50 S&H

Quantity:

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M

L


cups-300

TEAM McCann Cup
$8.00 ea. 
+$10.50 S&H

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Sight Pusher
(sight adjustment - removal tool)

pusher1-300

$50.00 
+$10.50 S&H

Quantity:

pusher2-224 pusher3-224

NEW- MAS 1949/56
Titanium Alloy Firing Pin

MAS Firing Pin

DISCONTINUED

NO GUNSMITHING
$89.00 
+$10.50 S&H

This Titanium Firing Pin weights only .428 ounces compared to the original steel pin at .714 ounces. That is a difference of .286 ounces.
 


NEW- 1913 Picatinny-Type
Scope Rail
Our 1913 rail that mounts right on our M1A scope mount, uses
existing screws to replace weaver bases.
Rail only , rifle and scope mount not included...
 

1913 Scope Rail

NO GUNSMITHING
$36.00 
+$10.050 S&H

Quantity:


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For information call (253) 537-6919 or FAX to (253) 537-6993
or E-Mail us at McCann Industries
If you're in Washington stop by: 132 South 162nd, Spanaway, WA 98387

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