870 safety question


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357phase
September 24, 2006, 10:03 AM
Hello:I found a wingmaster in great condition at a pawn shop and couldn't pass it up for the price.20" barrell,rifle sights and nice wood.Did not pay attention to saftey until I got home.It's a big head safety but it's for left hand.Since my other 870's are right handed,this may be a problem one day when not thinking and have a gun ready to fire when thinking saftey is on.Will the agi video show me how to install a new safety?Also seen a advertisement for a larry crow video.Does anybody know which is better or should I spit out $45.00 to have a gunsmith do it?I thought for that price,I could get a video and new safety and have some extra know how to go with it.Thanks

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dfariswheel
September 24, 2006, 03:36 PM
Changing the safety is easy with a little care.

Assuming you have a RIGHT-HANDED 870 and have a new right-hand safety available, here's how to do the job:

Remove the trigger group.

Un-cock and gently lower the hammer.

Near the rear of the trigger group is a large, hollow bushing. On one end is a spring clip to hold it in place.
Push this bushing out from the side without the clip.
This will allow the trigger to move forward.

At the extreme rear of the trigger group you'll see a small silver cross-pin.
Directly on top of the trigger group above the silver pin is a hole.

With your finger over the hole to catch the spring, use a small punch to push out the silver pin, from LEFT to RIGHT.

With the pin out, remove your finger from the hole and carefully remove the small coil spring.
Under the spring is a tiny silver ball. This may or may not come out if you turn the trigger group over. If it doesn't, leave it in place.

The safety will now drop out.

Insert the new safety, being sure the RED band is on the LEFT side of the trigger group.

Insert the ball if it came out, then insert the coil spring.

Use a small screwdriver or punch to push the spring down while holding the safety in place. (As an aid, you can use a strip of tape to help hold the safety).

With the spring pressed down, insert the silver pin TAPERED END FIRST.
Make sure it passes over the top of the spring, locking it in place.Press the pin fully into the trigger guard.

Re-insert the large hollow bushing, keeping the spring clip on the same side as it was.

Test the safety to insure it operates properly and prevents the trigger from moving.

This actually takes almost as long to read as actually doing the job.

357phase
September 24, 2006, 05:57 PM
Thank you for that information.I may attempt with what you have given me.I have put together the guns I have taken apart like my mossberg but it took several hours.Tried to watch where everything went but some parts just fell out.Ruger blackhawk had springs fly when I took off grip frame.I guess that's why they say to use a pin to catch the main spring when you cock it and ease the tension off.Again,thanks for that reply.I also need to change my others with the lock.I guess the complete trigger group does not have to be taken apart to change the safety.Gunsmith said it would take 45 minutes and would cost $45.00.Said he would have to completely disassemble the trigger group.

Fred Fuller
September 24, 2006, 06:58 PM
No need to take out either of the bushings in the trigger plate to change the safety. All that's necessary for safety's sake is to gently release the pressure of the hammer spring by taking off the safety and pulling the trigger while controlling the hammer so that it doesn't fall. On older 870s safeties were reversible, yours might well be. Try reversing it and see if it works.

Any time the trigger plate is not installed in the gun, be sure to control the hammer fall when the trigger is pulled. Sometimes spontaneous disassembly happens if this isn't done. And be sure and do a function check on your work when you're done, make sure the safety works properly in both the on and off positions.

Stay safe,

lpl/nc

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