Handgun Barrels

Pistol barrels and barrels for your handgun.

True Precision Sig Sauer P365XL X-Fluted Match Grade Barrel

4.3 star rating 13 Reviews

$161.49 - $180.49
Four Payments of $40.37 with . Learn More

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Killer Innovations Sig P320C Velocity Threaded Barrel
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4.8 star rating 30614 Reviews

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Verified Reviewer

0.0 star rating

06/22/25

Review by Anonymous User

On

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06/22/25

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David B.
Verified Buyer

5.0 star rating

06/20/25

❤️Rainier Arms Rock !

Review by David B. on 20 Jun 2025 review stating ❤️Rainier Arms Rock !
Waiting list paid off ! Most other vendors would have put it on the auction site for twice as much

On Knight's Armament Company (KAC) Barrel Extension Action Wrench

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06/20/25

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Brandon B.
Verified Buyer

5.0 star rating

06/19/25

It’s a very cool, and

Review by Brandon B. on 19 Jun 2025 review stating It’s a very cool, and
It’s a very cool, and effective charging handle. It feels great and works great

On Rainier Industries Avalanche AR-15 Ambidextrous Charging Handle

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06/19/25

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Ryan O.
Verified Buyer

2.0 star rating

06/17/25

Not worth the money or the shipping fees to return kit.

Review by Ryan O. on 17 Jun 2025 review stating Not worth the money or the shipping fees to return kit.
After installing shifter kit, the paddle is very loose and I am NOT confident that the paddle will remain in place on the flashlight. Also, as is misleading in which side of the flashlight it goes on. I ordered the left side thinking it is for the left side of the flashlight when it is on the pistol in my hand. Apparently it is for the left side of the light when you are looking at the lense of the flashlight. Again, VERY misleading.

On Emissary Development Paddle Shifter Kit for SureFire X300 - Left

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06/17/25

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Sebastian

5.0 star rating

06/17/25

Thanks RainierArms

Review by Sebastian on 17 Jun 2025 review stating Thanks RainierArms
I was having trouble ordering this barrel with other companies quickly as I needed a replacement ASAP. Rainierarms was able to get me this barrel THE NEXT DAY!! Thank you guys so much!!! Will be shopping here for future pieces

On True Precision P365-FUSE 9mm Threaded Barrel 4.3"

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06/17/25

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Jordan H.
Verified Buyer

5.0 star rating

06/17/25

Cut & thread/upper disassembly

Review by Jordan H. on 17 Jun 2025 review stating Cut & thread/upper disassembly
Rainier did great work disassembling my pinned upper. They also cut and thread the barrel to move to a new pistol build and everything went great with quality workmanship. I would have them do any future needed gunsmithing.

On Cut & Threading

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06/17/25

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$268.00 - $268.00
Four Payments of $67.00 with . Learn More

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Killer Innovations Sig P320C Velocity Non-Threaded Barrel

4.9 star rating 7 Reviews

$249.00 - $249.00
Four Payments of $62.25 with . Learn More

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Agency Arms Sig P320 Compact Mid Line Barrel

4.5 star rating 4 Reviews

$200.00 - $200.00
Four Payments of $50.00 with . Learn More

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L2D Combat Precision Match Sig Sauer P320 Compact 9MM Barrel - Fluted

4.3 star rating 4 Reviews

$146.92 - $149.99

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True Precision SIG Sauer P365XL X-Fluted Match Grade Barrel Threaded 1/2X28

5.0 star rating 15 Reviews

$170.99 - $189.99
Four Payments of $42.75 with . Learn More

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Danger Close Armament DCA-365 Select Match 9mm Threaded Barrel For Sig P365 - (3.1")

5.0 star rating 1 Review

Out of stock

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Danger Close Armament DCA-365 Select Match 9mm Barrel For Sig P365 - (3.1")

5.0 star rating 1 Review

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Danger Close Armament DCA-X5 Select Match 9mm Barrel For Sig P320 X-Five - (5")

5.0 star rating 2 Reviews

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