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Diagram of a model 70 bolt- how to take the bolt apart to change firing pin

I need to change the spring and firing pin in the bolt

Posted by Anonymous on

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Compress the spring. Remove the C Clip. Remove the spring. Remove the firing pin & cocking piece from the shroud. Drive out the retaining pin in the cocking piece. Unscrew the pin. Reinstall in reverse order.

Posted on Mar 06, 2013

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Posted on Jan 02, 2017

agent91
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SOURCE: I took apart a remington model 550-1 auto 22

Without seeing it, It's hard to tell, the closest I can come is the extractor plunger, or a part of the lifter.3 pins in there, your trigger plunger, and 2 pins on the safety.None are the shape you noted. Going by this drawing anyway. I didn't want to take my 550 apart to look for it, But I will if I have to. There is one more pin in the end of the tube magazine.

Posted on Mar 04, 2010

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WHERE CAN I FIND THE BREECH BOLT WITH FIRING PIN AND SPRING? FOR A 22 MARLIN 25MN


Contact a local gunsmith for this. This site doesn't sell parts or have anyway to find them.

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1 Answer

Mossberg 500 A old style firing pin; can I replace it with the new factory pin without changing bolts


It'll work but you'll need the spring, too. The old style pin was pushed back out of battery by the locking lug as you pumped the gun. It won't push the new style so you could theoretically have a stuck firing pin fire a shell out of battery. Be safe, just use the firing pin for your bolt....or buy a new bolt off of Ebay. The entire bolt is a direct switch out.

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How to remove firing pin spring from mossberg 835 shotgun


Small pin at the back of the bolt. Top edge. Tap it out. As with all pins, just drift it out to the point that you can grab it with smooth pliers and twist it out. Do NOT drive a punch any further into that hole than you need to. Punches widen as they go and you'll deform the hole. Pins are cheap to replace, bolts aren't.

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1 Answer

Firing pin not working


Take the bolt out of the rifle and take the firing pin out of the bolt. Thoroughly clean the firing pin and surrounding spring with a harsh solvent (Gunblast works well--be sure to lubricate the spring and pin after cleaning).

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1 Answer

Mossberg 800 bolt disassembly instructions


TO DISASSEMBLE BOLT - Depress Safety

Cap' Lock Plunger #8 and turn Safety Cap

# 1 counterclockwise. Striker Spring #9

and Firing Pin Assembly #10 can then be

removed.


TO REASSEMBLE BOLT - Replace firing pin

assembly and striker spring. Insert safety

cap and turn clockwise making sure that it is screwed forward as far as it will go. Then unscrew

until the hole for the safety cap lock plunger is in line

with the cam slot in the bolt. Drop lock spring and

plunger into hole and face cut out portion toward bolt.

Depress plunger and screw cap clockwise until the
plunger is engaged in the recess in the rear of the bolt.

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2 Answers

I have a model senco sn1v it fires 1 nail then the drive pin fails to retract to the reload position what could be the cause.


The air release behind the pin is stuck. take off the cover on the back and in the center you should see a cap that opens and closes to fire the pin. Carefully tap out the cap ( it is spring loaded ) clean and lub until parts slide easy so spring will close and reassemble

Mar 13, 2010 | Senco & Frame Pro 601 Framing Nailer

2 Answers

I took apart a remington model 550-1 auto 22 and a small pin fell out and I have no idea where it goes. It is about 3/4'' long,round and it has 1 end the same size as the firing pin and larger on the other...


Without seeing it, It's hard to tell, the closest I can come is the extractor plunger, or a part of the lifter.3 pins in there, your trigger plunger, and 2 pins on the safety.None are the shape you noted. Going by this drawing anyway. I didn't want to take my 550 apart to look for it, But I will if I have to. There is one more pin in the end of the tube magazine.

Jan 17, 2010 | Optics

2 Answers

Model 70 270 win will not eject spent shells where can i find parts for winchester model 70 xtr 270 win bolt


Try Numrich---they have just aout everything. You can find them on their web site

Sep 22, 2009 | Sport & Outdoor - Others

5 Answers

Winchester model 100 semi-auto 308 cal. how to disassemble?


IMPORTANT Recall info:
WINCHESTER MODEL 100 FIRING PIN RECALL - A notice dated 7-1990 relates the following
“PRODUCT SAFETY WARNING AND REPLACEMENT NOTICE. Attention owners of Winchester model 100
rifles and carbines please read this notice. In July of 1990 the following product safety
warning was issued by Winchester. It has come to our attention that the firing pin in the
Winchester Model 100 Rifle or Carbine may break due to use and metal fatigue and become
lodged in the breech bolt face. If this occurs, the firearm may fire before the action is
locked causing severe damage to the firearm and possibly injury or death to the shooter
and bystander.
WARNING DO NOT SHOOT YOUR WINCHESTER MODEL 100 RIFLE OR CARBINE. Repair and replacement.
A new firing pin has been designed to replace the firing pin originally made for the
Winchester Model 100 Rifle and Carbine. The new firing pins will be available in April
1991. If you own a Winchester Model 100 Rifle or Carbine, please send your firearm to one
of the authorized Winchester Model 100 Firing Pin Replacement Centers indicated below.
Your Winchester Model 100 firearm will be inspected, the firing pin replaced and tested
and the firearm returned to you. The inspection, replacement/testing and return postage
will be accomplished at no cost to you. If other repair or maintenance work is authorized
by you to be performed on the firearm when the firing pin is replaced, such work shall be
at your cost.”
W. R. Long Gunsmiths
2007 Brook Road North
Cobourg, Ontario K9A4W4
Canada Frank LeFever & Sons
RD 2 Box 31
Lee Center, NY 13363
USA Bolsa Gunsmithing
7404 Bolsa Avenue
Westminister, CA 92683
USA Nu Line Guns
1053 Caulks Hill Road
Harvester, MO 63303
USA

If you have any questions concerning this notice, call Winchester Product Service
1-800-852-5734 or write to Winchester Firing Pin replacement Notice, PO Box 10 Cottage
Hills Illinois 62018 Attention Product Service Dept.
----------------------------------------------------------------------------------

The following is Wisner's rendition & info on the subject.
The difference in the old firing pin and the new one is as follows. The old replaced
style, was totally lathe tuned (round). While the new recall style is similar in lathe
turning on the front and back, but in the front midsection it has two flats milled, one
on each side. This makes the center section stronger. Also replaced is the bolt sleeve
lock pin (firing pin guide) which was made to accommodate this different shaped firing
pin
Part number for the new parts are, firing pin =1391ND, bolt sleeve locking pin =1491ND
The word was at the time this recall was in process was that if the firing pin would
break at the mid section and still remain in the gun as two pieces, the possibility of a
premature discharge before the bolt was locked was possible. This apparently was caused
by the firing pin tip (now not having a retracting spring) to be stuck forward, and
thereby slam-firing upon chambering.
The responsibility for the recall apparently was on Olin, as they were the parent company
at time of manufacture. Olin set up regional recall centers at three established US
gunshops. There was a manufacturing delay in the replacement firing pins, and a backlog
occurred, also some collectors did not like the idea of shipping their guns long
distances. Olin then also authorized other gunshops to make the required alterations.
Upon completion of the recall, the shops were to test fire the firearm and to stamp an
assigned letter on the inside top of the receiver as seen thru the magazine well with the
bolt retracted. The letter “B” represented Bolsa Gunsmithing, “L” was Lefever, and “N”
was for Nu-line Guns. The letter “X” apparently was for all the other independent shops.
However this identification information did not get communicated to some of the smaller
shops at the start of the project. The only way to tell if the gun as been modified, if
the ”letter” is not present, is to take the barrel & action out of the stock, remove the
trigger guard assembly and the try to rotate the firing pin by twisting it. If it does
NOT rotate, then the firing pin recall HAS been performed.
For link back to the parts & price list that we make & have for sale CLICK HERE
Copyright © 2004-2007 Wisner's Inc. All Rights Reserved
Back to Additional information To Winchester model 88 & 100 parts
Originated 01-13-2001 Last Modified 03-19-2007
LeeRoy Wisner

Apr 05, 2009 | Sport & Outdoor - Others

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