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Rainier Arms

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Handgun Barrels

Pistol barrels and barrels for your handgun.

Agency Arms Sig P320 Compact Mid Line Barrel

4.5 star rating 4 Reviews

$200.00 - $200.00

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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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Agency Arms Sig P320 Compact Premier Line Threaded Barrel
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4.8 star rating 30242 Reviews

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Verified Reviewer

0.0 star rating

03/01/25

Review by Anonymous User

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03/01/25

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FRANKLIN P.
Verified Buyer

5.0 star rating

02/28/25

Excellent Purchasw

Review by FRANKLIN P. on 28 Feb 2025 review stating Excellent Purchasw
Purchased open box item for 3 Laugo arms magazines. Mags were new and at a significant savings. Thank you Rainier Arms!

On Laugo Arms Alien Magazine - 17RD (Open Box)

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02/28/25

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Whitney J.
Verified Buyer

5.0 star rating

02/27/25

Amazing quality and service.

Review by Whitney J. on 27 Feb 2025 review stating Amazing quality and service.
Great rifle, shipping was fast and got to my FFL in just a few days. The rifle quality is above and beyond anything you could possibly ever need. I ran it suppressed and it ran quite and smooth. The recoil on this rifle is ridiculously smooth when suppressed. I’ll be buying another rifle for my wife from Rainer soon.

On Sons of Liberty Gun Works M4-89 5.56 AR-15 Rifle - 13.7" (Pinned)

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02/27/25

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Alan D.
Verified Buyer

5.0 star rating

02/27/25

Great Upper

Review by Alan D. on 27 Feb 2025 review stating Great Upper
High quality upper, shoot's great so far, would recommend.

On Bravo Company MFG (BCM) AR-15 Upper Receiver 9" 300 BLACKOUT MCMR-8

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02/27/25

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Daniel M.
Verified Buyer

5.0 star rating

02/27/25

Happy customer

Review by Daniel M. on 27 Feb 2025 review stating Happy customer
A little taller than I thought but very good product

On Forward Controls Design Backup Iron Sights - G43x/48

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02/27/25

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Andre F.
Verified Buyer

5.0 star rating

02/27/25

Great project platform. Just be

Review by Andre F. on 27 Feb 2025 review stating Great project platform. Just be
Great project platform. Just be careful with mag types. Comp mags doesn't fit well.

On Sharps Bros Overthrow AR-15 Complete Lower Receiver w/o Stock - Gen 2

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02/27/25

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$310.00 - $310.00

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Agency Arms Sig P320 Compact Premier Line Barrel

$300.00 - $300.00

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True Precision Sig P320 Compact 3.9" Non-Threaded Barrel

$180.49 - $199.49

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True Precision Sig P320 Compact 3.9" Threaded Barrel

$199.49 - $218.49

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Agency Arms Sig P320 Compact Mid Line Threaded Barrel

5.0 star rating 4 Reviews

Out of stock

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Danger Close Armament DCA-320 Select Match 9mm Barrel For Sig P320 - (3.9")

5.0 star rating 1 Review

Out of stock

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Agency Arms Sig P320 Compact Premier Line Threaded Barrel - SS

$310.00

Out of stock

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