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The Range
Gunsmithing & Repairs
1911 Bobtail housing install with pics
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<blockquote data-quote="Glocktogo" data-source="post: 2898856" data-attributes="member: 1132"><p>Very good thread and I'm glad to see someone else doing this! I started on "Project ATI Commander Bobtail" over a year ago. Unfortunately work took a turn for the very busy and I haven't completed it yet. I started with an ATI "American Tactical M1911 GI-E, that I got on sale for around $320 delivered. Here's what I've done so far:</p><p></p><ul> <li data-xf-list-type="ul">Ed Brown bobtail MSH (using the same EB jig)</li> <li data-xf-list-type="ul">heavily contoured it to the frame (they come "proud" of the frame)<br /> </li> <li data-xf-list-type="ul">heavily beveled magwell</li> <li data-xf-list-type="ul">undercut trigger guard</li> <li data-xf-list-type="ul">lowered and flared the ejection port (the ATI came with the original Colt pattern, unbeveled or relieved port)</li> <li data-xf-list-type="ul">beveled the flat cut hole in the Commander hammer</li> <li data-xf-list-type="ul">flush cut slide stop</li> <li data-xf-list-type="ul">installed a fiber optic rod in the stock front sight</li> <li data-xf-list-type="ul">"U" bottomed and widened the back sight notch, for quicker sight acquisition</li> <li data-xf-list-type="ul">replaced the ejector with an extended Wilson ejector</li> <li data-xf-list-type="ul">installed Wilson bulletproof slide stop and Wilson bulletproof thin, single side thumb safety</li> <li data-xf-list-type="ul">upgraded to a Wolff extra power 22#recoil spring and extra power firing pin spring, and a Nowlin competition sear spring<br /> </li> <li data-xf-list-type="ul">fitted an EGW thick flange, angle bore bushing with carry bevel, along with a long nose recoil spring plug to match</li> <li data-xf-list-type="ul">fitted an EGW flat bottom firing pin stop<br /> </li> <li data-xf-list-type="ul">installed an STI short polymer trigger, adjustable for takeup and overtravel</li> <li data-xf-list-type="ul">polished the disconnector<br /> </li> <li data-xf-list-type="ul">trigger job set to a crisp 4.5#, with neutral sear engagement, properly set takeup to ensure the half cock notch works correctly and overtravel properly set to prevent interference with the sear as the hammer falls</li> <li data-xf-list-type="ul">adjusted the grip safety engagement to ensure positive function</li> <li data-xf-list-type="ul">some internal polishing on rough spots and high points to increase overall smoothness</li> <li data-xf-list-type="ul">Installed short grip screw bushings and a set of thin VZ Operator II's I picked up used for $40 and bobtailed to match the frame (also had to "defang" the Op II's for CCW, still grippy but not painful!) <img src="/images/smilies/smile.png" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" /></li> <li data-xf-list-type="ul">Wilson 47D 8 round mags with low profile pads</li> </ul><p>Still left to do:</p><ul> <li data-xf-list-type="ul">full carry bevel</li> <li data-xf-list-type="ul">45 degree flush cut barrel crown<br /> </li> <li data-xf-list-type="ul">stipple or checker the front strap and MSH "CCW style" which means not all the way to the sides of the frame, for greater comfort (this may be the only mod I farm out, as I'm too chicken to do it)</li> <li data-xf-list-type="ul">Trijicon HD or Ameriglo Pro front sight</li> <li data-xf-list-type="ul">full refinish (still undecided on color, either two tone Cerakote or satin hard chrome frame and ion-bond slide)</li> </ul><p>It feels like a completely different gun than it did out of the box. It no longer slings brass 20 feet, as it was seriously undersprung in stock form. It feels better, handles better, operated more smoothly and is more accurate. The barrel link was very well fit out of the box, but the stock bushing fit was terrible. Everything was pretty much done by hand, including blending the MSH to the frame with files, sandpaper and polish. I think it's going well so far. Comments?</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_CIMG1170_zpspr5ravon.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_CIMG1175_zpsucc3vvby.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_CIMG1178_zpsfgx9clat.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0898_zpsegj83riu.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0897_zpszadvm0xm.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0896_zpsmyngcfbr.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0899_zpsek8z8jcg.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0901_zpspaecqmtd.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0903_zpsptj7mibk.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0905_zps34hdypm0.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Glocktogo, post: 2898856, member: 1132"] Very good thread and I'm glad to see someone else doing this! I started on "Project ATI Commander Bobtail" over a year ago. Unfortunately work took a turn for the very busy and I haven't completed it yet. I started with an ATI "American Tactical M1911 GI-E, that I got on sale for around $320 delivered. Here's what I've done so far: [LIST] [*]Ed Brown bobtail MSH (using the same EB jig) [*]heavily contoured it to the frame (they come "proud" of the frame) [*]heavily beveled magwell [*]undercut trigger guard [*]lowered and flared the ejection port (the ATI came with the original Colt pattern, unbeveled or relieved port) [*]beveled the flat cut hole in the Commander hammer [*]flush cut slide stop [*]installed a fiber optic rod in the stock front sight [*]"U" bottomed and widened the back sight notch, for quicker sight acquisition [*]replaced the ejector with an extended Wilson ejector [*]installed Wilson bulletproof slide stop and Wilson bulletproof thin, single side thumb safety [*]upgraded to a Wolff extra power 22#recoil spring and extra power firing pin spring, and a Nowlin competition sear spring [*]fitted an EGW thick flange, angle bore bushing with carry bevel, along with a long nose recoil spring plug to match [*]fitted an EGW flat bottom firing pin stop [*]installed an STI short polymer trigger, adjustable for takeup and overtravel [*]polished the disconnector [*]trigger job set to a crisp 4.5#, with neutral sear engagement, properly set takeup to ensure the half cock notch works correctly and overtravel properly set to prevent interference with the sear as the hammer falls [*]adjusted the grip safety engagement to ensure positive function [*]some internal polishing on rough spots and high points to increase overall smoothness [*]Installed short grip screw bushings and a set of thin VZ Operator II's I picked up used for $40 and bobtailed to match the frame (also had to "defang" the Op II's for CCW, still grippy but not painful!) :) [*]Wilson 47D 8 round mags with low profile pads [/LIST] Still left to do: [LIST] [*]full carry bevel [*]45 degree flush cut barrel crown [*]stipple or checker the front strap and MSH "CCW style" which means not all the way to the sides of the frame, for greater comfort (this may be the only mod I farm out, as I'm too chicken to do it) [*]Trijicon HD or Ameriglo Pro front sight [*]full refinish (still undecided on color, either two tone Cerakote or satin hard chrome frame and ion-bond slide) [/LIST] It feels like a completely different gun than it did out of the box. It no longer slings brass 20 feet, as it was seriously undersprung in stock form. It feels better, handles better, operated more smoothly and is more accurate. The barrel link was very well fit out of the box, but the stock bushing fit was terrible. Everything was pretty much done by hand, including blending the MSH to the frame with files, sandpaper and polish. I think it's going well so far. Comments? [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_CIMG1170_zpspr5ravon.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_CIMG1175_zpsucc3vvby.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_CIMG1178_zpsfgx9clat.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0898_zpsegj83riu.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0897_zpszadvm0xm.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0896_zpsmyngcfbr.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0899_zpsek8z8jcg.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0901_zpspaecqmtd.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0903_zpsptj7mibk.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/i151.photobucket.com_albums_s157_Glocktogo_IMG_0905_zps34hdypm0.jpg[/IMG] [/QUOTE]
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