WOLFF - 22 lb. Officers ACP Spring

Works perfect in my Lightweight Officers Model which has a .250" diameter full length guide rod with zero modifications.

I have a Springfield 1911 V10UC-ported Officers model with bull barrel, the spring did not fit as a drop-in part. I had to do some fitting to make it fit the plunger, no big deal I don't like sloppy a fit anyway. Fired the gun several hundred times without any issues, its much stiffer than the original spring but that maybe because the new spring is about 1 1/2 coils longer.

I cannot attest to the spring itself since I cannot install it. Although it certainly appears sturdy. I had a Wilson guide install on my Colt Officer's (I don't know why other than it was a good idea at the time.) In any case the spring is designed to work with a standard Colt recoil spring guide. No guide rods.

Got this cause it was recommended for my RIA 1911 Compact. The spring tapers at one end and it is impossible to use without getting it adjusted as the plunger won't fit all the way through the spring.

I purchased this spring to replace the OEM spring in a Colt MK IV Series 80 Officers ACP which I recently inherited. Prior to replacing the spring, the gun was having a failure to feed about once in every 20 to 25 shots. After installing this spring, the gun is experiencing failures to feed or eject about every 4 or 5 rounds. Even had one fired round jammed back into the chamber backwards! Rounds are ejecting so fast that they bounce around in the range stall like a ball in a pinball machine. I am also noticing that there's a lot more powder residue blowing back onto the rear of the slide. I'm guessing what they call a "Standard" spring is not nearly strong enough. I'll be contacting customer service to see if I can exchange for the 24# spring they have listed.