RO trigger work for dummies -

Improving Range Officer Trigger pull for dummies (& non-pistolsmiths)-: K.I.S.S. -
RO ILS mainsprings are extra stout (30#s) & might not take to a lot of sear spring tweaking. - So:
Save time, hassle, & $s - - get a Wolff 24# reduced power ILS mainspring (the lightest of the 3)-install it (easy with the SA ILS housing take down pin) - put a touch of Neco Molyslide on the sear/hammer hooks.
The 4-5 ROs I know of that've done this vary from 3½# to 4# trigger pull weight with no other modifications - and have zero function/ignition problems.
Spring #s sound odd?-Trust Wolff.

Try it- I think you'll like it. if you don't - it was a cheap & easy. -- Russ OR

Thanks! By any chance have you got any experience or opinion on the four leg sear leaf spring vs the three leg sear leaf spring?

Also I see midway sells a wolf reduced power mainspring kit. 19, 20 and 21 pounds. You mentioned 23 pounds, would 21 be too light?

Tim:H11 wrote:Also I see midway sells a wolf reduced power mainspring kit. 19, 20 and 21 pounds. You mentioned 23 pounds, would 21 be too light?

I'd double check to see if those weights are for the ILS mainspring housing or standard

Stay away from 4 leaf. Won't help. Use Colt style 3 leaf (has a long cutout).
Jon

Midway doesn't say if the springs would fit in in ILS housing or not.... Does it matter?

Tim:H11 wrote:Midway doesn't say if the springs would fit in in ILS housing or not.... Does it matter?

ILS springs are different from 'normal' mainsprings. Some take the more commonly available 'normal' springs and cut them down. Others of us swap out the ILS for a 'normal' mainspring housing and use the regular springs. It isn't necessary to change the housing now that there is a choice of springs to fit ILS guns but it made me feel less 'controlled'.

Bruce

Is the cut out in the sear spring for the hammer strut?

No it's off to the side. Have always had good results keeping weight with them.
Jon

+1 on the colt leaf springs..

Jon knows what he is talking about.  I always pay attention to Jon's posts.

Chip

Don't confuse the SA ILS mainsprings & numbers with standard mainsprings & numbers - the ILS numbers are higher. Go to the Wolff website-Find the section for Springfield Armory pistols-they have a well noted section for springs for the SA ILS housings. -  Maybe get 3 springs & share?-we did. -  - Search for Wolff gunsprings  -- - Russ

+1 on Jon's reply as well.  I only use Colt sear springs in my builds.  The Clark 4 leaf spring "fixes" a problem that really doesn't exist.

I'm just gonna order a new mainspring housing and use standard springs... Less complicated. BUT - can I use the pins from the ILS housing in the standard housing? I believe the new housing is just the housing. No pins.

Yes the pins are the same but you need a new standard mainspring cap and pin retainer. Below is a copy and paste of my order from Midway.

ription	Price	Quantity	Total
Springfield Armory Mainspring Housing Flat 1911 Government, Commander Checkered 20 LPI Blue Product #: 583572	$26.99	1	$26.99
Wilson Combat Factory Plus Mainspring Housing Pin Retainer 1911 Government, Commander Steel Blue Product #: 835662	$2.99	1	$2.99
Wilson Combat Factory Plus Mainspring Cap 1911 Blue Product #: 298985	$2.99	1	$2.99
Wolff Mainspring 1911 Government, Commander 21 lb Product #: 486705

You also need the mainspring cap pin since the ILS does not use one.

What about this?

http://www.midwayusa.com/product/148263/springfield-armory-complete-pin-set-1911-parkerized

Tim:H11 wrote:What about this?

http://www.midwayusa.com/product/148263/springfield-armory-complete-pin-set-1911-parkerized

I believe that set will give you exactly what you already have, it sounds like a replacement set of OEM parts. Brownell's lists a set of the 'normal' Mainspring housing pins as I recall, seems like it was $10 or so when I swapped mine out a few years back.

Bruce

Brownells also now sells a whole pin kit for the 1911 under their name for $10.

used a couple of the sets without issue