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A sloppy barrel bushing is one of the quietest accuracy killers in a 1911. When the barrel doesn't return to the exact same spot shot after shot, groups open up no matter how good your ammo or trigger is. Nowlin's Pre-Fit Commander bushing goes after that problem directly, tightening the slide-to-barrel relationship so your gun locks up the same way every single time. It's built for the 4.25" Commander-length setup and machined from 416 stainless steel, then heat treated so it stays dimensionally stable through a long life of firing cycles.
The pre-fit spec runs .701" on the outside diameter and .581" on the inside, which is dialed to pair with Nowlin, Wilson, and other .581" O.D. barrels. That inside diameter is the piece that grips your barrel, and getting it snug is where the accuracy gains actually live. Nowlin builds these to close tolerances so on the majority of guns the bushing simply drops in, giving you a fast, affordable path to better lockup without a full barrel job.
Here's the straight talk on the word "pre-fit": it means most of the work is already done, not that every gun is guaranteed a zero-effort install. On some pistols you may need to fit the bushing's outside diameter to your slide's inside diameter, and that's normal territory for this part. A little hand fitting with a file or hone, going slow and checking often, gets it right. If you're not comfortable turning wrenches on your own gun, a gunsmith can knock this out quickly.
Nowlin has a long reputation among serious 1911 people for barrels and bushings that shoot, and this Commander bushing is a smart, no-nonsense upgrade for anyone chasing tighter groups out of a carry-length gun or building one from the ground up.
On the majority of 1911s it goes in with little to no fitting, which is the whole point of the pre-fit spec. That said, some guns need the bushing's outside diameter fitted to the slide's inside diameter for a proper snug fit. Plan for a little hand fitting as a possibility, and it's an easy job for a gunsmith if you'd rather not do it yourself.
The .581" inside diameter is made to pair with Nowlin, Wilson, and other barrels that run a .581" outside diameter. If your barrel measures around .580" to .581", you're in the right ballpark for a snug fit. Measuring your barrel's O.D. before ordering is always the smart move.
A tighter bushing helps your barrel return to the same position in the slide shot after shot, and that consistency is what shows up on paper. The bushing is one piece of the lockup puzzle alongside the lugs, slide stop, and barrel hood, so it works best as part of an accurate setup. A gun that already has a very loose bushing will usually see the biggest gains.
Yes, this is Nowlin's Commander bushing, built for the shorter 4.25" barrel setup found on Commander-pattern 1911s. If you're running a full-size Government 5" gun, you'll want Nowlin's Government version instead. Matching the bushing to your slide length matters for correct fit.
| UPC | 085382301648 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 225SC |
| Model | |
| Style | Pre-Fit |
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