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NOTICE! The warehouse will be closed Thursday 3/13 & Friday 3/14. All orders placed on these days will be processed next week! ------ Free Ground Shipping on all firearms 3/6/2025 through 3/13/2025!

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Pistol parts and handgun parts on one place. Rainier Arms offers you a selection of pistol triggers, barrels, slides, magazines, frames and more from top manufacturers in the industry.

Arms Republic 9mm Compensator for FN 509C

5.0 star rating 1 Review

$56.95 - $56.95

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Lone Wolf Dusk 19 9MM Assembled Slide for Glock 19 Gen 3
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Verified Reviewer

0.0 star rating

03/13/25

Review by Anonymous User

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03/13/25

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Will H.
Verified Buyer

5.0 star rating

03/12/25

Works great. Just what I

Review by Will H. on 12 Mar 2025 review stating Works great. Just what I
Works great. Just what I wanted

On Gear Head Works Tailhook MOD 1

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03/12/25

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Shawn S.
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5.0 star rating

03/12/25

Great lower at a great price!

Review by Shawn S. on 12 Mar 2025 review stating Great lower at a great price!
Nice finish, in spec with a nice fit on 2 different uppers. I highly recommend.

On Airborne Arms AAM4 AR-15 Stripped Lower Receiver

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03/12/25

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Brad H.
Verified Buyer

5.0 star rating

03/12/25

A perfect upgrade

Review by Brad H. on 12 Mar 2025 review stating A perfect upgrade
Great addition to my Geissele carrier and centurion bolt!

On Obsidian Arms Enhanced AR-15 Bolt Carrier Pin Kit

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03/12/25

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Wayne V.
Verified Buyer

5.0 star rating

03/12/25

gamechanger

Review by Wayne V. on 12 Mar 2025 review stating gamechanger
these things are the perfect place for your left thumb. much better than the competing thumb rest that is curved, so that it is practically useless imo

On Align Tactical S&W M&P 2.0 Thumb Rest Takedown Lever

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03/12/25

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Willie
Verified Buyer

5.0 star rating

03/12/25

Excellent IR

Review by Willie on 12 Mar 2025 review stating Excellent IR
Holds zero, durable, great product

On US Night Vision Designate IR Dual-Beam Green Visible/Infrared Laser - FDE

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$499.95 - $499.95

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Sharps Bros P320 Improved Grip Module w/ Manual Safety

$303.95 - $313.45

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