Firearms
Rainier Arms provide a large choice of rifles, shotguns, handguns, Bolt Action, AK rifles, and AR pistols. Find, compare, and shop your favorite. In our offer, you can find firearms from manufacturers like Daniel Defense, Kalashnikov USA, Nighthawk Custom, and many many more. In case you run out of ammo, you can browse and purchase ammo for your firearm.

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Patriot Ordnance Factory (POF) Phoenix 9MM Pistol - 8"★ ReviewsPopup content startsclose Popup
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from real shoppers4.8 star rating 30627 Reviews- Site Reviews
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Thank you for posting a review!We value your input. Share your review so everyone else can enjoy it too.Thank you for posting a review!Your review was sent successfully and is now waiting for our staff to publish it.Verified Reviewer0.0 star rating06/30/25JJason Y.Verified Buyer5.0 star rating06/30/2518" ultramatch mod2 223 wyldeReview by Jason Y. on 30 Jun 2025 review stating 18" ultramatch mod2 223 wyldeI was pleased with the out of the box quality appearance. Immediately put on my upper and built it up with a mix of parts I had laying around the parts locker. Initial impression while doing a manifold tuning and barrel break in I was not impressed. I chalked it up to range ammo but went back out to my range and followed up with some better quality ammo. Second time a charm I guess. This barrel just rocks! Groups with middle road ammo at 100 yards in the 1. 25" range. Once I start doing load development with some hand loads I'm sure it will bee sub 1" all day.On Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 18" NitrideJJohn R.Verified Buyer5.0 star rating06/29/25You will not be disappointedReview by John R. on 29 Jun 2025 review stating You will not be disappointedThe product is in built with attention to detail and it’s quality through and through! Remarkable !!!On OA Defense OA 2311 Pro 9mm Ported Pistol - High Desert SageBBrian K.Verified Buyer5.0 star rating06/29/25Radian ramjet for sig p365xlReview by Brian K. on 29 Jun 2025 review stating Radian ramjet for sig p365xlGreat stuff as usual from radianOn Radian Weapons Afterburner & Ramjet Barrel Combo For Sig P365XL 3.7" - BronzeJJarodVerified Reviewer5.0 star rating06/29/25Works!Review by Jarod on 29 Jun 2025 review stating Works!Had to try it, on a . 223 16" build first. Ended up watching many you-tube videos and all pretty much say use a heavy buffer. I tried two different buffers, and my 5. 3oz stopped the light primer strikes (bolt bounce) and allowed the mag to empty and last round locked the bolt to the rear. I paired this with a CMMG trigger having the open back as recommended from multiple users (again info from you-tube). I recommend a comp, to help reduce muzzle rise, maybe something like the Lantac Dragon, ported near its top. Will be trying my lower on other uppers soon.On Atrius Development 3 Position Super Selektor SafetyFFrancisco A.Verified Buyer5.0 star rating06/29/25A++Review by Francisco A. on 29 Jun 2025 review stating A++A++On Sharps Bros Echelon Improved Grip Module - Black / Brazilian Cherry$1,696.00 -
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Danger Close Armament Sig Sauer P365XL Optics-Ready 9mm Signature Pistol - Glock Gray/TiNSpecial Price $799.99 Regular Price $1,256.54
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Next Level Armament Horus Radial Delayed Blowback 9MM PCC Pistol - 5"Special Price $1,050.92 Regular Price $1,300.00
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Shopping Options
Barrel Length
- 2" 3 items
- 2.5" 1 item
- 2.75" 1 item
- 3.0" 11 items
- 3.1" 16 items
- 3.18" 1 item
- 3.25" 2 items
- 3.27" 1 item
- 3.3" 1 item
- 3.39" 1 item
- 3.41" 10 items
- 3.43" 1 item
- 3.5" 16 items
- 3.54" 1 item
- 3.6" 5 items
- 3.66" 1 item
- 3.7" 10 items
- 3.75" 2 items
- 3.8" 4 items
- 3.85" 4 items
- 3.9" 35 items
- 3.94" 1 item
- 4" 36 items
- 4.01" 1 item
- 4.02" 11 items
- 4.09" 2 items
- 4.1" 1 item
- 4.17" 6 items
- 4.20" 1 item
- 4.25" 61 items
- 4.3" 7 items
- 4.32" 1 item
- 4.4" 18 items
- 4.45" 2 items
- 4.46" 1 item
- 4.48" 2 items
- 4.49" 8 items
- 4.5" 19 items
- 4.53" 1 item
- 4.57" 1 item
- 4.6" 18 items
- 4.61" 1 item
- 4.7" 24 items
- 4.71" 1 item
- 4.78" 1 item
- 4.8" 13 items
- 4.89" 3 items
- 4.9" 4 items
- 4.925" 1 item
- 4.94" 1 item
- 5" 100 items
- 5.09" 1 item
- 5.1" 3 items
- 5.19" 2 items
- 5.2" 1 item
- 5.28" 2 items
- 5.3" 2 items
- 5.31" 2 items
- 5.4" 4 items
- 5.5" 11 items
- 5.51" 1 item
- 5.8" 3 items
- 5.87" 1 item
- 6" 9 items
- 6.5" 4 items
- 6.88" 2 items
- 7" 5 items
- 7.5" 3 items
- 7.72" 1 item
- 7.75" 3 items
- 7.8" 1 item
- 7.94" 1 item
- 8" 17 items
- 8.3" 3 items
- 8.5" 5 items
- 8.86" 2 items
- 8.9" 1 item
- 9" 3 items
- 9.5" 1 item
- 9.6" 1 item
- 9.75" 2 items
- 10" 2 items
- 10.3" 9 items
- 10.5" 15 items
- 11" 5 items
- 11.5" 12 items
- 11.75" 4 items
- 12" 3 items
- 12.5" 5 items
- 13" 5 items
- 13.7" 6 items
- 13.75" 2 items
- 13.9" 1 item
- 14" 1 item
- 14.17" 2 items
- 14.3" 1 item
- 14.5" 18 items
- 15.14" 1 item
- 16" 97 items
- 16.1" 11 items
- 16.17" 2 items
- 16.2" 1 item
- 16.25" 21 items
- 16.3" 5 items
- 16.33" 3 items
- 16.5" 28 items
- 17.4" 2 items
- 18" 23 items
- 18.43" 1 item
- 18.5" 32 items
- 19.1" 4 items
- 19.75" 1 item
- 20" 12 items
- 20.8" 1 item
- 22" 4 items
- 24" 10 items
- 26" 6 items
- 28" 3 items
Caliber
- .22 ARC 1 item
- .22 Cal 4 items
- .22 LR 37 items
- .22 WMR 1 item
- .223/5.56 2 items
- .223 Rem 1 item
- .223 Wylde 18 items
- .30-30 3 items
- .30 Cal 16 items
- .300 PRC 1 item
- .300 Win Mag 2 items
- .308 11 items
- .308 Win 13 items
- .32 ACP 1 item
- .338 1 item
- .357 Magnum 27 items
- .36 Cal 2 items
- .38/.357 Magnum 7 items
- .38 Special 1 item
- .380 ACP 2 items
- .380 Auto 2 items
- .40 S&W 1 item
- .410 1 item
- .44 Magnum 10 items
- .45-70 GOVT 1 item
- .45 ACP 39 items
- .45 Colt 6 items
- .46 Cal 1 item
- 10mm 12 items
- 12 Gauge 51 items
- .360 1 item
- 300 Blackout 26 items
- 300 Norma Mag 1 item
- 338 Lapua 1 item
- .460 1 item
- 45-70 Gov't 2 items
- 50 Cal 1 item
- 5.45x39 6 items
- 5.56X45 6 items
- 5.56 NATO 135 items
- 5.56mm 21 items
- 5.7x28mm 8 items
- 6mm ARC 8 items
- 6.5 Creedmoor 13 items
- 6.5 PRC 1 item
- 6.8x51 3 items
- 7.62mm 19 items
- 7.62x39 35 items
- 7.62x51 13 items
- 7mm-08 Rem 1 item
- 8.6 Blackout 8 items
- 9mm 523 items
Category
Configuration
Finish
Gas System
Magazine Capacity
Manufacturer
- 21st Tec 8 items
- Advanced Armament Company (AAC) 5 items
- Agency Arms 2 items
- Andro Corp Industries 1 item
- Angstadt Arms 3 items
- AREX Defense 11 items
- Arsenal 8 items
- Atlas Gunworks 11 items
- Brügger & Thomet (B&T) 14 items
- Battle Arms Development 4 items
- Benelli 24 items
- Beretta 26 items
- Black Rain Ordnance 12 items
- BOE Suppression 3 items
- Bravo Company MFG (BCM) 5 items
- Bul Armory 8 items
- Canik 7 items
- Centurion Arms 1 item
- Chiappa Firearms 9 items
- Christensen Arms 1 item
- Citadel 1 item
- Colt 19 items
- CZ-USA 30 items
- Dan Wesson 2 items
- Daniel Defense 19 items
- Danger Close Armament 19 items
- Dark Hour Defense 1 item
- Dead Air Armament 11 items
- Empire 4 items
- F-1 Firearms 2 items
- Faxon Firearms 3 items
- FNH USA 34 items
- FOR Systems 4 items
- FosTecH 2 items
- Foxtrot Mike 2 items
- Geissele 7 items
- Genesis Arms 5 items
- Global Ordnance 1 item
- Glock 29 items
- Grand Power 16 items
- Grey Birch MFG 4 items
- Grey Ghost Precision 3 items
- Griffin Armament 8 items
- Grit City Cerakote 1 item
- Heckler & Koch 39 items
- Henry 10 items
- HUXWRX 10 items
- IWI 14 items
- Jacob Grey 5 items
- JK Armament 9 items
- JMAC Customs 2 items
- JP Enterprises Inc 6 items
- Kalashnikov USA 1 item
- Kel-Tec 5 items
- Kimber 2 items
- Kings River Custom 3 items
- Knight’s Armament Company (KAC) 5 items
- Korth 1 item
- Kustomworx 4 items
- Laugo Arms 11 items
- Lewis Machine & Tool (LMT) 14 items
- Lone Wolf Arms 3 items
- M+M Industries 2 items
- Marlin 7 items
- MasterPiece Arms 8 items
- Matador Arms 2 items
- Maxim Defense 17 items
- Military Armament Corp. 1 item
- Modern Materiel 7 items
- Mossberg 1 item
- NEMO Arms 2 items
- Next Level Armament 5 items
- Nighthawk Custom 46 items
- Noveske 14 items
- OA Defense 28 items
- Patriot Ordnance Factory (POF) 17 items
- Phoenix Trinity 8 items
- Polymer80 3 items
- Primary Weapon Systems 15 items
- Pristine Technologies 1 item
- Q, LLC 25 items
- Quarter Circle 10 1 item
- Radian Weapons 2 items
- Radical Defense 19 items
- Rainier Arms, LLC 12 items
- Remington 3 items
- Replicator 3 items
- Richmond Tactical 4 items
- Riley Defense 14 items
- Rise Armament 2 items
- RogueOps 3 items
- Rossi 8 items
- Ruger 5 items
- Rugged Suppressors 6 items
- Shadow Systems 28 items
- Siege Suppressors 2 items
- Sig Sauer 132 items
- Silencerco 13 items
- Sionics Weapon Systems 1 item
- Smith & Wesson 5 items
- Sons of Liberty Gun Works 3 items
- Specters Cat 5 items
- Springfield Armory 21 items
- Staccato 52 items
- Stealth Arms 4 items
- Stoeger 15 items
- Surefire 5 items
- Taran Tactical Innovations 3 items
- Tippmann Arms 10 items
- Tisas USA 3 items
- Trailblazer Firearms 1 item
- Trinity Nevada 3 items
- True Precision 3 items
- Uberti 2 items
- V Seven Weapon Systems 9 items
- VKTR Industries 4 items
- Vudoo Gun Works 1 item
- Walther 16 items
- Wilson Combat 6 items
- Wolfpack Armory 2 items
- Zenith Firearms 4 items
- ZEV Technologies 1 item
Model
- 2K11 1 item
- Arex Delta 2 items
- Benelli Supernova 1 item
- Beretta 92X 2 items
- Beretta APX 1 item
- Beretta 1301 1 item
- CZ P-09 2 items
- CZ P-10 5 items
- FNH Five-Seven 1 item
- FNH Scar 1 item
- Glock 19 2 items
- Glock 19X 2 items
- Glock 20 1 item
- Glock 34 1 item
- Glock 43X 3 items
- Glock 44 1 item
- Glock 45 2 items
- Glock 48 1 item
- H&K P30 1 item
- Sig P220 5 items
- Sig P226 6 items
- Sig P229 5 items
- Sig P320 17 items
- Sig P365 8 items
- Sig P365X 2 items
- Sig P365XL 2 items
- Sig P365 X-Macro 1 item
- Sig MCX 10 items
- S&W M&P M2.0 1 item
- Springfield Hellcat 1 item
- Staccato 2011 14 items
- Staccato C2 2 items
- Staccato CS 1 item
- Staccato HD 3 items
- Stoeger STR-9 1 item
Optic Footprint
Option
Platform
- 1911 12 items
- AR-9 2 items
- AR-10/LR308 9 items
- AR-15 58 items
- AK47/74 13 items
- Benelli 5 items
- Beretta 11 items
- Canik 5 items
- CZ 12 items
- FNH 7 items
- Glock 15 items
- H&K 4 items
- Kimber 1 item
- Remington 1 item
- Sig Sauer 68 items
- Smith & Wesson 3 items
- Springfield 4 items
- Staccato 23 items
- Stoeger 1 item
- Walther 4 items
Product Type
- AK Pistol 7 items
- AK-47/74 Rifle 26 items
- AR Pistol 42 items
- AR-10 Rifle 25 items
- AR-15 Complete Upper Receiver 1 item
- AR-15 Rifle 120 items
- AR-9 Complete Lower Receiver 1 item
- AR-9 Pistol 1 item
- AR-9 Rifle 3 items
- Bolt-Action Receiver 2 items
- Bolt-Action Rifle 24 items
- Complete Upper 1 item
- Firearm 57 items
- Handgun 573 items
- Lever-Action Rifle 24 items
- Pistol Caliber Carbine 62 items
- Short-Barrel Rifle 34 items
- Shotgun 47 items
- Suppressor 132 items
Rail Length
- 4.5" 2 items
- 5.5" 1 item
- 6.0" 2 items
- 6.7" 1 item
- 7" 4 items
- 7.25" 1 item
- 9" 5 items
- 9.5" 2 items
- 9.75" 5 items
- 10" 1 item
- 10.5" 1 item
- 10.75" 1 item
- 11" 1 item
- 11.5" 1 item
- 11.7" 1 item
- 12" 7 items
- 12.5" 5 items
- 13" 5 items
- 13.5" 7 items
- 13.6" 1 item
- 14" 1 item
- 14.5" 4 items
- 15" 18 items
- 15.25" 1 item
- 16.5" 4 items
Size
Thread Pitch
Twist Rate
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