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RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.1" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" -Bronze
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.1" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
RAMJET Barrel w/AFTERBURNR Micro Comp Sig P365 3.7" BLK/Gray
None
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RADIAN WEAPONS - RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black

20 Reviews
Color
Model Number
RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black
Brownells #
430112502
MFR #
R0840
UPC
810098420662
$389.95
Coupon Code
Purchase Limit Help

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International purchase information

Specifications
Color:
Black
Item Width (Inches):
0.200
Finish:
DLC
Cartridge:
9mm Luger
Item Weight (lbs):
1.000
Material:
Steel
Item Height (Inches):
3.500
Make Model Fit:
Sig Sauer.P365XL
Item Length (Inches):
0.750
Quantity:
1
Model Number:
3.7" Slide
Restriction
Barrel Restrictions:
Yes
View US State Restrictions
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International purchase information

What is the RADIAN WEAPONS - RAMJET Barrel W/AFTERBURNER Micro Comp Sig P365 3.7" - Black?
AFTERBURNER + RAMJET FOR SIG SAUER P365®

The Radian® AFTERBURNER™ + RAMJET™ combo provide unprecedented recoil reduction and match grade accuracy in a concealed carry package. The threadless barrel design allows for effortless install/removal for cleaning, while LEGAL FOR SALE IN ALL 50 STATES*.

The AFTERBURNER™ compensator is machined from hardened stainless steel and the RAMJETTM barrel from hardened 416R SS; both are enhanced with a Radianite Black coating. This combination achieves low friction, high hardness, and high corrosion resistance, making overall durability and erosion from muzzle blast a non-issue. Angled front faces on the AFTERBURNER™ aid in holstering.

The INTRA-LOK® mounting system uses the taper lock principle; a tapered locking screw interfaces with an angled V-groove on the underside of the barrel. This perfectly times the
compensator as it locks down onto the upper barrel profile on the muzzle end of the barrel.

INTRA-LOK® allows the user to simply slide the compensator over the barrel, insert and tighten the locking screw, making for a simple and repeatable installation process. This system allows the user to easily remove the barrel from the slide for cleaning.

FEATURES
  • AFTERBURNER™ Hardened SS
  • RAMJET™ Hardened 416R SS
  • Match Grade Barrel
  • Gas Sealing Chamber
  • Loaded Chamber Indicator

Barrel Restriction
Barrels will be shipped to an FFL dealer when shipping to CA. 

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    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

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AFTERBURNER + RAMJET FOR SIG SAUER P365® REVIEWS

4.9
20 Reviews
5 Stars
90%
4 Stars
5%
3 Stars
5%
2 Stars
0%
1 Stars
0%
Reviews Summary
Overall, users express high satisfaction with the Afterburner + Ramjet, citing significant recoil reduction and improved accuracy for follow-up shots. Many commend its craftsmanship and value for money. However, some experiences with fitting issues and occasional malfunctions have been noted, impacting trust for everyday carry.
What Reviewers Are Saying
Recoil Reduction
80%
Many reviewers highlight the impressive recoil reduction offered by the Afterburner + Ramjet, which enhances control during shooting. Users appreciate the ability to maintain sight on targets for rapid follow-up shots. This theme features prominently, emphasizing the product's effectiveness for practice and defense.
Installation Experience
50%
While some users found the installation straightforward, others encountered fitting challenges that required adjustments. Most agree that while the installation process is generally easy, it may not be as seamless for everyone, leading to mixed feedback.
Quality and Craftsmanship
70%
Reviewers frequently commend the high-quality materials and craftsmanship of the Afterburner + Ramjet. Many appreciate the precise fit and finish, contributing to a positive perception of the product and the brand.
Value for Money
60%
Despite some mentioning that the product is pricey, many agree that the performance justifies the cost. Reviewers believe the Afterburner + Ramjet combo delivers substantial value relative to its price, especially in improving shooting experience.
Performance Issues
30%
A few customers reported performance hiccups, including failure to feed and reliability concerns when using certain types of ammo. This theme indicates that while many users are pleased, occasional issues could be a concern for those relying on it for everyday carry.
5
Good Investment
Drop-in installation, about as easy as it gets. Really helps muzzle flip to help get back on target. Does lengthen the barrel, so you'll probably need a new holster.
Would you recommend this? Yes, I would recommend to a friend
by George Prudden on June 11, 2026
Verified Purchase
Was this review helpful? 0
5
Great Product!
This really made the 365 flatter shooting. Easy to install as well.
Would you recommend this? Yes, I would recommend to a friend
by CHRIS HELM on April 09, 2026
Verified Purchase
Was this review helpful? 1
5
Small gun - Big Comp
Very accurate and dramatically reduces time on follow on shots.
Would you recommend this? Yes, I would recommend to a friend
by Steve Sanders on January 19, 2026
Verified Purchase
Was this review helpful? 1
5
Radian ramjet+afterburner
Great part at a great price. Always satisfied with Brownells
by DAN MARTIN on January 14, 2026
Verified Purchase
Was this review helpful? 1
5
Great product
Quality, feel, and Shipping is great. I bought the wrong size so just looking for my replacement to arrive. Super excited to add this to my build. Definitely recommend!
Would you recommend this? Yes, I would recommend to a friend
by JULIUS CARMICHAEL on January 07, 2026
Verified Purchase
Was this review helpful? 1
View All 20 Reviews
Customer Questions
0 Questions