| FACTS AND QUESTIONS |
| All Bushing Compensators are threaded .575x40. They will require an extended threaded barrel for them to be screwed onto. Most extended barrels will have an extended length of 1" for this purpose. All Bull Barrel Comps are threaded .685x40. They will require an extended threaded Bull Barrel for them to be screwed onto. Most barrels will have and extended length of 1/2" for this purpose. Made of either 4140 Carbon Steel in the white or 416 Stainless Steel. Bushing style comps and Bull Barrel Comps are available on request in 2024 Aluminum for experimenting (only 40% the weight of steel). STANDARD Cone Diameter is .699-.701. The cone should fit into your slide but will need a little metal removed from the top of the cone for barrel lockup. OVERSIZE diameter available on request (.710+). Coned comps fit on standard size barrels that can be or are threaded. The barrel bushing will be removed and replace by the cone of the comp. Reverse plug will need to be added. All coned comps can be special ordered with shorter cone for installing on standard length Bull Barrels (must specify when ordering). Cone will be oversize and need to be blended into the contour of the bull barrel. The Bull Barrel will need to be turned down and threaded .575x40 for the comp to screw onto. To be installed by a competent gunsmith. NOTE- In general, comps are not to be installed on pistols shooting light loads. The bigger the comp, the more it will slow down the cycling of the slide. A lighter recoil spring will need to be used (usually 2-4lbs. lighter). Slide lightening may be required depending on the caliber and load used. |
| Don't use a Stainless Steel Frame or Slide for building up a custom gun. Stainless Steel has a tendency to gall up and bind the slide and frame. There has been some success with certain grades of stainless, but you don't know what you are getting when ordering parts. Having extra play and using extra grease to lubricate helps, but this is not for custom precision built guns. An alternative is to have the parts hard chromed to keep them from galling. SO DON'T SEND ME A STAINLESS SLIDE OR FRAME TO BUILD ON!!!!! |
| Serious open class raceguns need to have the slide lightened. How much to lighten the slide depends on the size and weight of the compensator and barrel. The extra weight of the comp and barrel will slow the cycling of the slide down because the slide can not starts it cycling until it pulls the barrel/comp back and down out of the way. So the heavier the barrel/comp is, the lighter the slide needs to be to compensate for the extra weight. Also, the compensator pushes down on the slide and slows it's cycling even more. So the bigger the comp and the more efficient the comp is, the more it will slow the slide down also. Again, the slide will need to be machined even lighter to compensate for this also. Some of the more popular ways to install a comp on a racegun have different weights and the slide weight needs to be matched up accordingly. 1- Coned comp installed on a standard .580 dia. barrel. (one of the lightest weight). 2- Titanium comp on an extended bull barrel. (similar in weight to 1). 3- Trubore. (heavier). 4- Steel comp on an extended bull barrel. (heaviest). A good standard to use is a bare slide weight of 10.5 oz. for use with a medium size compensator. This would be for a #1 or #2 barrel/comp setup using major power factor loads. |
| If you are buying a 9mm STI slide, you may be better off getting the 38S slide instead. The 9mm slides are machined with the ejector cut that runs into the side of the breech face. This leaves a ledge about .010" deep on the side of the breech face. When the extractor pushes the casing to the side, it can slip off of the side and down onto that ledge. This can cause ejection problems. So, until STI corrects this, you may be better off using the 38S slide. |
| Sorry, no hard chroming. I only offer Blueing. If you are going to send your gun out to get hard chromed, you should put some rounds through it first to loosen it up some. Some parts may be fitted to close for chroming when it is new. |