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KCI USA AR-15 Polymer Magazine - 30rd

5.0 star rating 1 Review

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Elite Tactical Systems (ETS) AR15 Magazine w/ Tritium Follower - 30rd

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Elite Tactical Systems (ETS) AR-15 Magazine - 30rd

2.5 star rating 2 Reviews

Special Price $9.92 Regular Price $17.99

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Elite Tactical Systems (ETS) AR15 Magazine w/ Coupler and Tritium Follower - 30rd
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Verified Reviewer

0.0 star rating

06/18/25

Review by Anonymous User

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06/18/25

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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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James
Verified Buyer

5.0 star rating

06/16/25

Best Budget Lower Receiver

Review by James on 16 Jun 2025 review stating Best Budget Lower Receiver
Ordered again, this time 3. It's just that good. Perfect tolerances, Milspec to the core. I built 6 with this lower and so far it just runs flawless. Talk about High Quality Budget builds, this is the one! Will buy more in the future! Also Rainier Arms is the best, just wish they can overstock on a lot of items.

On Airborne Arms AAM4 AR-15 Stripped Lower Receiver

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06/16/25

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Chris A.
Verified Reviewer

5.0 star rating

06/11/25

Top 1X Prism

Review by Chris A. on 11 Jun 2025 review stating Top 1X Prism
For the money you pay, you wont beat this beast. Crystal clear, large sight picture, and holds zero reeeaaalll nice. As long as you aren’t a potato, you’ll hit everything you aim at with it within 100yards, and I was constantly on steel (12in x 12in) with it at 200yards.

Lifetime warranty? Are you kidding?

Just run this, and thank me later.

Also, Rainer Arms, can’t go wrong with this great company.

On Atibal P1 Solar 1x Motion Activated Micro Prism Optic

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06/11/25

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Kevin A.
Verified Buyer

5.0 star rating

06/07/25

Barrel nut.

Review by Kevin A. on 7 Jun 2025 review stating Barrel nut.
Looks good works great

On V Seven Weapon Systems Titanium GI Barrel Nut

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06/07/25

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