In stock
Apex Tactical Apex Grade 9mm 4.25" Threaded Semi Drop-In Barrel, Stainless - 105-061
In stock

Apex Tactical Apex Grade 9mm 4.25" Threaded Semi Drop-In Barrel, Stainless - 105-061

SKU 793055
Brand APEX
Model Number 105061
UPC 856008005987
Customers must read Compliance Information before purchasing.
This product is fulfilled by a PSA Partner and shipping times may vary.

Product Details


  • Type: Threaded, Semi Drop-In
  • Series/Collection: Apex Grade
  • Size: 9mm Luger
  • Barrel Length: 4-1/4"
  • Twist Rate: 1:10"
  • Thread Size: 1/2-28
  • Material: Stainless Steel
  • Finish: Stainless
  • For Use With: Smith & Wesson 9mm M&P Pistol


The Mk 1 Apex Grade Threaded Semi Drop-In 4.25 inches barrel is designed for the 9mm Smith & Wesson M&P. Due to the tolerance variations in the M&P Slide, the barrel is semi drop-in. In some cases this means the barrel may drop-in without alteration, but in most cases will likely require minor fitting which is easily done by the end user. The stainless steel barrel features a 1:10 inches twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-1/2 inches grouping at 25 yd. Accuracy test results based on use of a mechanical rest. Final results may vary based on shooter ability, ammunition selection and variations in factory firearm tolerances.


  • Direct replacement of factory 4.25 inches barrel
  • Features 1/2 X 28 threads
  • Improves accuracy
  • Optimal performance seen with bullet weights of 115 grain through 147 grain using 9mm jacketed ammunition
  • Due to variations in factory slide tolerances, slight fitting may be required and is easily performed by the end user
  • Includes (1) thread protector with O-Ring (installed)


Q & A


All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.