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Cutting 5" Goverment Model slide down


jesseskinner
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I would like to shorten a goverment model slide down and run it on a short/wide dustcover full size STI.

 

My plan is to hacksaw/then trim up on the mill to 4.5" from the original 5", cut the slide for a reverse plug, shorten the barrel and thread it for a cone comp, on a lathe, and use a commander length guide rod and spring. Is there anything I am missing in my plans or any suggestions from someone who has already done one?

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If you're going to go to 4.5 inches a Commander guide rod is going to be too short because those are 4.25".  But you can get a 5" and cut it down.  You'll probably have to redrill the hole for the takedown pin and you'll probably also have to cut the shoulder for the reverse plug deeper as well.

Edited by ltdmstr
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Jesseskinner  I use a 1/4 guide rod from Nighthawk so I can use flat wire springs.    The rounded bull nose is something I did later on but I left enough material in the end of the guide plug so could round it off.   Barrel is 5" cut down to 4" and sleeved.     PM me if you want more information.

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Many moons ago, I had an IPSC Modified gun built that way.

Shorten GM slide to about 4.4"; cut for reverse plug.

Fit barrel with cone + single chamber compensator to fit Modified Box.

Install GM plug and guide rod.  The bottom of the compensator was grooved to let the plug protrude. 

I shot it in the American Handgunner IPSC Postal Match of the 1980s.

 

I really miss it.  I took off the compensator when I got IDPA Fever.   

 

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7 hours ago, Jim Watson said:

Many moons ago, I had an IPSC Modified gun built that way.

Shorten GM slide to about 4.4"; cut for reverse plug.

Fit barrel with cone + single chamber compensator to fit Modified Box.

Install GM plug and guide rod.  The bottom of the compensator was grooved to let the plug protrude. 

I shot it in the American Handgunner IPSC Postal Match of the 1980s.

 

I really miss it.  I took off the compensator when I got IDPA Fever.   

 

My Limited gun is basically set up like this.

I have an island bbl with the sight on it, think compensator without any ports in it.

5" slide cut down to 4 3/8", just how it worked out, 

Full 5" guide rod with reverse collared plug and a recess in the bottom of the island to allow clearance for GR and plug.

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