BAR-STO 1911 Barrel SS, Threaded .578X28

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45 ACP
Unit of Measure:
1911 5" Government Threaded Barrel, Semi-Fitted, 45 ACP, Threaded .578x28 TPI
SEMI FIT Government Barrel Extended & Threaded - A SEMI FIT Barrel Generally requires little to no fitting. They should go in about 7 out of 10 times with no fitting required but with the tolerance of firearms, this is not always the case.
All barrels come with link and pin and bushing.
Chambers are middle Saami spec.
38 Super head spaces on case mouth.
We have been manufacturing these since 1967.
Please allow a MINIMUM of 10-12 weeks for production time.
Bar-Sto barrels have been used by the U.S. Marine Corps Marksmanship Unit since 1977. The AMU , Natonal Guard and Air force teams also use BAR-STO Barrels.We have many Special OP people using our products.They have also been used to win every major pistol tournament worldwide, including Camp Perry, the U.S.P.S.A. Nationals, Steel Challenge, the Masters, and many more. All Bar-Sto Pistol barrels are machined from solid stainless steel bar stock which has been heat treated 39 to 43 RC this gives 180,000 PSI tensile strength. Barrels are machined,and rifled completely in our own shop. Accuracy out of our barrels properly fitted can be 1" or better at 25yrds. All barrels have a rate of twist of 1 turn in 16". We have been doing the same thing for over 35 Years. We have been involved in many special projects and custom jobs and have seen and done just about everything at least once. We are still the standard by which all others are measured. We strive to provide the VERY best and most consistant product on the market. We are a family run and owned business.

Estimated shipping times are posted on the product information page under the title "Ships On Or Before:" please note that all lead-times are estimates.  For items in our warehouse, we usually ship within 3 business days.  For items only available at distribution or other sources, the ship time may be up to 10 business days.  For items only available at the manufacturer, the lead-time may be a few weeks or longer-- depending on availability.

Please also note that some items are unique, hard to obtain, or one-of-a-kind, so Impact reserves the right to cancel your order should an item not be available to ship.

We will not charge your credit card until your product ships, except for certain special orders.

We normally will ship FedEx and US POSTAL. If you need faster shipment, we can ship 2nd Day or Next Day for an extra charge.

Alaska and Hawaii residents - your order MUST ship 2nd day or faster. Most orders over $100 value will ship with a signature-required to ensure they make it to you. Products that have free shipping only applies to the lower 48 states.

NOTE: We make every effort to get your order shipped as fast as possible. In some circumstances, especially during sales and after weekends, we may not get your order shipped in the time specified. Please rest assured that we will ship your item as soon as we can.

We want you to be 100% satisfied with your purchase from Impact Guns, therefore we offer no hassle returns.

How do I start the return process?

  • Log in to your account and locate and click on the "Request Return" link.
  • An Impact Guns agent will review your request for a return and respond within two business days.
  • All returns are subject to inspection and approval prior to refund being issued.
  • All products need to be in new and original manufacturer condition.
  • As an alternate method, you can send an email to Please be sure to include your original order number and relevant contact information.

When will I get my credit or return?

  • Most returns are fully refunded in 3-5 days after we receive and process the return. It may take longer for the credit to appear in your account depending on your bank. Most items that are in stock ship within 3-5 days after receipt of your returned item but may take longer depending on availability.
  • Returns must be charged back to the original credit card used in the purchase.  If this is not possible, we will refund you via check.

What about damaged/incorrect items?

  • If you received a damaged, defective, or incorrect item, Impact Guns will ship you a replacement of the exact item upon receipt of the damaged or defective item. Impact Guns will send you a return shipping label for the return.

What about return shipping costs?

  • If an Impact Guns error causes the need to return an item or we are replacing a returned defective or incorrect item, then we will pay the associated shipping costs.
  • Otherwise, the customer is responsible for any return shipping costs. When returning an item, please add package tracking and adequate insurance.
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