Trigger plunger Spring. Factory v. Volquartsen weight?

Discuss .22 pistols.

Moderators: Bullseye, Moderators

Post Reply
scshooter
New member
New member
Posts: 5
Joined: Wed May 26, 2010 10:27 pm
Location: South Carolina

Trigger plunger Spring. Factory v. Volquartsen weight?

Post by scshooter » Sun Jun 13, 2010 11:28 pm

I recently installed the Volquartsen sear, target trigger, and a Mark II bushing. In spite of continually reminding myself of how easy it would be to drop/lose the safety detent and the trigger plunger spring, it dropped both.

In eventually found both but completed the upgrade by using the factory plunger spring, with the Volquartsen plunger.

I recall reading that the use of a factory plunger spring will result in a trigger pull of 3 lbs. Does anyone know the difference in the specs for the two springs?

Also, I can't understand how the plunger spring weight would effect the trigger pull?

User avatar
Bullseye
Site Admin/Host
Site Admin/Host
Posts: 6384
Joined: Sun Aug 14, 2005 12:23 pm
Location: USA

Post by Bullseye » Mon Jun 14, 2010 6:32 am

The trigger plunger spring only adds 4-6 ounces to the trigger pull. Trigger pull weight is a combination of all the forces that resist the pull of the trigger. The sear spring and the trigger plunger spring tension plus any friction is the sum of the total pull weight.

R,
Bullseye
Image

User avatar
blue68f100
Master contributor
Master contributor
Posts: 1997
Joined: Mon May 25, 2009 10:31 pm
Location: Piney Woods of East Texas

Post by blue68f100 » Mon Jun 14, 2010 9:01 am

You only feel the plunger spring when you take up the pretravel. So it's only a few ounces at most. If you want to try lighter cut down a bic pen spring. Just remember this spring is what operates the disconnector.
David

SS MKIII 6 7/8" Fluted Hunter. Mueller Quick Shot, Bushnell 2x Scope, Hogue Rubber Grips
Custom Built 1911

scshooter
New member
New member
Posts: 5
Joined: Wed May 26, 2010 10:27 pm
Location: South Carolina

Pull weight

Post by scshooter » Mon Jun 14, 2010 9:24 am

Thanks for the info.

I thought that the plunger spring weight would only effect the pre-travel feel. I think that I will keep the factory spring, with the Volquartsen plunger.

I bought the Mark III to shoot Steel Challenge Matches (Iron sights). The Gloc k 34, that I shoot IDPA with, has a 3.3 lb. trigger, with lots of pre and post travel. To keep my triggers, remotely similiar, I'll keep the Mark III with about a 3 lb. trigger and a little pre and post travel.

ronn
New member
New member
Posts: 38
Joined: Sat Mar 06, 2010 3:31 pm

Re: Trigger plunger Spring. Factory v. Volquartsen weight?

Post by ronn » Mon Jun 14, 2010 9:33 pm

I put in the Volquartsen kit and Clark bushing and got a trigger that was well below 2#. Put the stock spring back in and got it slightly above 2#. Second Mark II got the same treatment with the stock spring and came to 2 1/4#. Now have 3 Mark II with the same internal setup which is right where I would want them.

Post Reply