Posted: 10/13/2006 9:09:23 PM EDT
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I have a Springfield Ultra compact and recently i have been having jamming issues. the round keeps getting hung up on the feed ramp. Could this be a worn out recoil spring issue? 
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| Now for some constructive advice... You MUST replace that damned recoil spring every other day in those hiccup machines (we're talking ever 1,000 rounds, not 3,000 like full size 1911s). Try that first (ensuring you are using factory weight springs) and see what happens. |
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www.gunsprings.com/SemiAuto/1ndex.html And if you have smithing tallent, IM me and I will walk you through cleaning up the mess SA calls a finished product. |
On Kimbers, they recommend you swap out the recoil spring assembly every 500 rounds. But, that's Kimber. Realistically, you should be able to get 700-1000 rounds out of the recoil spring before you need to replace it. The shorties really do beat it up a bit. |
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This is the "new model" recoil system, which replaces the recoil guide & spring and is the current solution to the reliability problem these shorys are born with. |
My Defender has none of these problems mentioned in this thread nor do most Defenders but I guess that is just dumb luck as we all know (over and over, ad nauseam) short 1911s just don't work. 
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before and after. gun is spotless same with mags no nose dive PMC 230g FMJs being used |
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I don't have much experience with shorty 1911's. But all of the feeding problems I have ever fixed, were due to weak magazine springs. Not weak recoil springs. If the magazine spring is not strong enough, it does not raise the next round up to be chambered, fast enough, so it causes a feeding malfunction. Especially a nosedive. |
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With the noise dive, bank on the mag springs on the way out. If you need to do a quick test to confirm the mag spring problem, pull the springs out of the mag and stretch then out by hand. Granted that the spring will take the old set in a few loadings, it will at least confirm that the spring is at fault if the pistol runs with the temp tweak. If/when you rebuild the mags, use Wilson Combat part #266,45C. The kit will include a type 47 follower, and a stronger spring. The follower design prevents the noise dive as the spring starts to weaken, and at the same time, this kit adds one additional round to the mag (read mags will be 7 rounder). When you load the new spring and follower, press the spring about half way down into the mag, then load a small rod through the spring coils to hold them compressed, , and drop the follower in and let the spring loose. To confirm that the spring is loaded correctly, check the follower at the slide catch section (side view), and look for the end of coil wind tight against the follower. P.S. Pulling the old springs and follower is just like the installing them. Press the spring down; load a tool a crossed the winds compressed, then tilt/lift the follower up/out. |
Only with 47 type mags that you can pull the bottoms, As stated, on welded bottom mags, you have to compress the mag spring, cross tool hold the spring down, then pull the follower up out the top through the lips, followed by pulling the cross tool and letting the spring fly!!!! 
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The kit is officer body specific, and when the old steel type follower is replaced with the new nylon type unit, this alone adds the additional round. As for the 7 round units, if this is an officer length mag, then the double steel L type follower has been changed to a slim line unit like the one that comes with the kit. If you mean that you have a standard GI length 7 round mag with the standard steel follower and the mag bottom with the extended upwards-front tab, then you want the Wilson combat kit for that mag, which would take the mag to an 8 rounder. Bottom line is Wilson offers three rebuild kits, The first kit rebuilds the officer mags, and adds an additional round capacity to the welded bottoms mags if the original follower is the standard steel L type unit. The second kit is for the standard frame model welded bottom mags, and take the round count from 7 round to 8 rounds. The last kit they offer is to for the full-length Wilson 47 mags with the removable bottoms, and this spring has an additional coil over a welded bottom mag rebuild kit. FYI: regarding the 7 and 8 round welded bottoms mags with the standard steel follower, The difference between these two types of mags is that the back L section of the follower is shorter and one spring coil shorter as well. |