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Semi Drop-In Threaded Barrel For S&W M&P - Semi Drop-In Threaded Barrel For S&W M&P 4.25''''
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$218.50
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SKU: 100023282
Overview
This threaded replacement barrel is built for Smith & Wesson 9mm M&P pistols that use a 4.25" barrel, giving shooters a straightforward option for a more accuracy-focused setup. It is a stainless steel barrel with a 1:10" twist rate and comes threaded 1/2-28, with a thread protector included. Apex lists the design as capable of producing groups as small as 1-1/2 inch at 25 yards when tested from a mechanical rest, though actual results will vary with shooter skill, ammunition, and factory tolerances. For hunters and outdoor shooters who want a practical upgrade for range use or a threaded muzzle setup, this barrel keeps the focus on fit and function without adding unnecessary complexity.
Why Hunters Choose the Apex Tactical Specialties Inc
Available 4.25-inch
Option for compatible Smith &
Stainless Steel
Construction
1:10 Twist
Rate
Threaded 1/2-28
Thread protector included
Designed Improve
Accuracy performance
Key Features
- Semi-drop-in threaded barrel for Smith & Wesson M&P 9mm pistols.
- Available in 5.00-inch or 4.25-inch options.
- Stainless steel construction with a 1:10-inch twist rate.
- Threaded 1/2-28 and includes a thread protector.
- Designed for M&P pistols requiring a 5.00-inch or 4.25-inch barrel.
- Accuracy testing cited as small as 1-1/2-inch groups at 25 yards under mechanical rest conditions.
Best Used For
- Owners of Smith & Wesson 9mm M&P pistols needing a 4.25-inch threaded barrel option
- Shooters looking for a semi drop-in barrel with included thread protector
- Users wanting a stainless steel barrel with 1:10 twist rate
- Range shooters focused on tighter groups from their M&P platform
- M&P owners replacing a barrel on pistols requiring a 4.25-inch fit
Specifications
| Accuracy Claim | capable of shooting as small as a 1-1/2 inch grouping at 25 yards |
|---|---|
| Accuracy Test Basis | mechanical rest |
| Available Barrel Lengths | 5.00" or 4.25" |
| Barrel Material | stainless steel |
| Compatible Firearm | Smith & Wesson 9mm M&P pistols requiring a 5.00" or 4.25" barrel |
| Thread Pitch | 1/2-28 |
| Thread Protector Included | Yes |
| Twist Rate | 1:10" |
Pros
- Available in 4.25-inch option for compatible Smith & Wesson M&P pistols
- Stainless steel construction
- 1:10 twist rate
- Threaded 1/2-28 with thread protector included
- Designed to improve accuracy performance
- Works with Smith & Wesson 9mm M&P pistols requiring a 4.25-inch barrel
Considerations & Trade-offs
- Only compatible with Smith & Wesson 9mm M&P pistols that require a 5.00" or 4.25" barrel, so fitment should be verified before purchase.
- Threaded 1/2-28 configuration adds accessory flexibility, but it also means the barrel is intended for setups that can use a threaded muzzle.
- Accuracy figures are based on mechanical-rest testing; real-world results will vary with shooter ability, ammunition selection, and factory tolerances.
- Offered in 5.00" and 4.25" options, so buyers need to choose the correct length for their specific pistol and intended setup.
Suggested Comparisons
- Pistol barrels
- Threaded handgun barrels
- Smith & Wesson M&P pistol parts
- 9mm pistol accessories
Suggested Accessories
- Thread protector
- Pistol cleaning kit
- Threaded barrel wrench
- Pistol case
Frequently Asked Questions
Which Smith & Wesson M&P pistols does this barrel fit?
It works with Smith & Wesson 9mm M&P pistols that require a 5.00" or 4.25" barrel.
Is this barrel threaded, and what thread pattern does it use?
Yes. It is threaded 1/2-28" and includes a thread protector.
What barrel lengths are available for this model?
It is available in 5.00" and 4.25" options. This listing is for the 4.25" version.
What material is the barrel made from?
The source data states that the barrel is stainless steel.
What accuracy information is provided by the manufacturer?
The description says the design can make the M&P capable of shooting as small as a 1-1/2 inch grouping at 25 yards, based on testing from a mechanical rest. Final results may vary based on shooter ability, ammunition selection, and factory firearm tolerances.