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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Benelli M4 Tactical Pistol Grip Semi-Auto 12 Gauge Shotgun - 18.5" Titanium Cerakote★ ReviewsPopup content startsclose Popup
These are real reviews
from real shoppers4.8 star rating 30486 Reviews- Site Reviews
- Product Reviews
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 rating04/23/25JJustin T.Verified Buyer4.0 star rating04/23/25HappyReview by Justin T. on 23 Apr 2025 review stating HappyOnly complaint is it showed up with a dead battery. Other than that, it's crisp, easy to pick up, and seems solidly builtOn Atibal SLR-1 SOLAR RED DOT SIGHTCCarlos N.Verified Buyer5.0 star rating04/22/25Excellent much needed addition to the Sig P365 family of firearmsReview by Carlos N. on 22 Apr 2025 review stating Excellent much needed addition to the Sig P365 family of firearmsExcellent aluminum frame for my Sig P365 X. I am still in the process of building my all metal carry concealed firearm, but this was basic, providing with an excellent quality and functional part really needed. Kudos to Icarus!!!!On Icarus Precision A.C.E. 365 XL Hybrid Aluminum Grip Module - BlackBBrantley D.Verified Buyer5.0 star rating04/22/25Delta RailReview by Brantley D. on 22 Apr 2025 review stating Delta RailDespite Troy’s history of poor hiring choices, their Delta rail is still (IMO) one of the best upgrades ever made for the standard issue M4. Installation was easy with no permanent modifications necessary. The handguard is solid and has no play at all. I thought these had been discontinued, but somehow Rainier Arms found a couple. Great job on stocking and shipping!On Troy Industries Battle Rail Drop-In Delta Handguard - Carbine Gas LengthGGerard S.Verified Buyer5.0 star rating04/22/25Great Mag. ReleaseReview by Gerard S. on 22 Apr 2025 review stating Great Mag. ReleaseA great looking ambi mag releaseOn Rainier Arms MARS Ambi Glock Mag Release: Gen 4 & 5TTimothy W.Verified Buyer5.0 star rating04/22/25Scalarworks Peak Iron SightsReview by Timothy W. on 22 Apr 2025 review stating Scalarworks Peak Iron SightsThese Sights are incredible and I highly Recommend Them!!!On Scalarworks PEAK Fixed Iron Sight - Rear$2,099.00 -
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Wilson Combat WCP320 Full 9mm Pistol w/ Action Tuned Straight Trigger - Tan5.0 star rating 3 ReviewsSpecial Price $999.92 Regular Price $1,425.00
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Wilson Combat WCP320 Full 9mm Pistol w/ Action Tuned Straight Trigger - Black5.0 star rating 6 Reviews$1,425.00
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Battle Arms Development Workhorse 5.56 NATO Pistol - 10.5" Anodized Black5.0 star rating 3 ReviewsSpecial Price $749.99 Regular Price $1,199.00
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Zev Technologies AR-15 Core Duty Rifle - 16"4.0 star rating 1 ReviewSpecial Price $999.92 Regular Price $1,564.00
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Riley Defense RAK-47-C-L 7.62x39 Rifle - Classic Laminate 16.25"4.7 star rating 3 ReviewsSpecial Price $849.00 Regular Price $1,019.00
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CITADEL KATAC 12 Gauge Semi Auto Shotgun - 20"5.0 star rating 6 ReviewsSpecial Price $175.00 Regular Price $349.00
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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" 6 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" 11 items
- 3.75" 2 items
- 3.8" 4 items
- 3.85" 4 items
- 3.9" 35 items
- 3.94" 1 item
- 4" 35 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" 57 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" 21 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" 103 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" 5 items
- 5.5" 12 items
- 5.51" 1 item
- 5.8" 2 items
- 5.87" 1 item
- 6" 9 items
- 6.02" 1 item
- 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" 2 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" 13 items
- 11" 5 items
- 11.5" 12 items
- 11.75" 4 items
- 12" 1 item
- 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" 17 items
- 15.14" 1 item
- 16" 96 items
- 16.1" 11 items
- 16.17" 2 items
- 16.2" 1 item
- 16.25" 20 items
- 16.3" 5 items
- 16.33" 3 items
- 16.5" 28 items
- 17.4" 2 items
- 18" 21 items
- 18.43" 1 item
- 18.5" 31 items
- 19.1" 3 items
- 19.75" 1 item
- 20" 12 items
- 20.8" 1 item
- 22" 6 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 20 items
- .30-30 3 items
- .30 Cal 17 items
- .300 PRC 1 item
- .300 Win Mag 2 items
- .308 11 items
- .308 Win 12 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 3 items
- .410 1 item
- .44 Magnum 10 items
- .45-70 GOVT 1 item
- .45 ACP 43 items
- .45 Colt 7 items
- .46 Cal 1 item
- 10mm 13 items
- 12 Gauge 48 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 11 items
- 5.56 NATO 125 items
- 5.56mm 22 items
- 5.7x28mm 8 items
- 6mm ARC 4 items
- 6.5 Creedmoor 15 items
- 6.5 PRC 1 item
- 6.8x51 3 items
- 7.62mm 16 items
- 7.62x39 35 items
- 7.62x51 13 items
- 7mm-08 Rem 1 item
- 8.6 Blackout 6 items
- 9mm 525 items
Category
Configuration
Finish
Gas System
Magazine Capacity
Manufacturer
- 21st Tec 8 items
- Advanced Armament Company (AAC) 5 items
- Aero Precision 4 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 24 items
- Black Rain Ordnance 12 items
- BOE Suppression 3 items
- Bravo Company MFG (BCM) 5 items
- Bul Armory 21 items
- Canik 7 items
- Centurion Arms 1 item
- Chiappa Firearms 9 items
- Christensen Arms 1 item
- Citadel 1 item
- Colt 19 items
- CZ-USA 29 items
- Dan Wesson 2 items
- Daniel Defense 18 items
- Danger Close Armament 20 items
- Dark Hour Defense 1 item
- Dead Air Armament 10 items
- Empire 4 items
- F-1 Firearms 2 items
- Faxon Firearms 3 items
- FNH USA 34 items
- FOR Systems 1 item
- FosTecH 2 items
- Foxtrot Mike 3 items
- Geissele 1 item
- Genesis Arms 3 items
- Global Ordnance 1 item
- Glock 30 items
- Grand Power 17 items
- Grey Birch MFG 4 items
- Grey Ghost Precision 3 items
- Griffin Armament 8 items
- Grit City Cerakote 1 item
- Heckler & Koch 38 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 2 items
- Kel-Tec 5 items
- Kimber 2 items
- Kings River Custom 3 items
- Knight’s Armament Company (KAC) 5 items
- Korth 1 item
- Kriss USA 1 item
- 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 1 item
- Next Level Armament 5 items
- Nighthawk Custom 44 items
- Noveske 14 items
- OA Defense 27 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 22 items
- Quarter Circle 10 1 item
- Radian Weapons 2 items
- Radical Defense 19 items
- Rainier Arms, LLC 11 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 33 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 16 items
- Surefire 5 items
- Taran Tactical Innovations 2 items
- Tippmann Arms 10 items
- Tisas USA 3 items
- Trailblazer Firearms 1 item
- Trinity Nevada 3 items
- True Precision 3 items
- Uberti 3 items
- V Seven Weapon Systems 7 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 3 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 2 items
Optic Footprint
Option
Platform
- 1911 15 items
- AR-9 2 items
- AR-10/LR308 10 items
- AR-15 52 items
- AK47/74 13 items
- Benelli 5 items
- Beretta 11 items
- Canik 5 items
- CZ 11 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 2 items
- Walther 4 items
Product Type
- AK Pistol 7 items
- AK-47/74 Rifle 26 items
- AR Pistol 41 items
- AR-10 Rifle 25 items
- AR-15 Complete Upper Receiver 1 item
- AR-15 Rifle 112 items
- AR-9 Complete Lower Receiver 1 item
- AR-9 Pistol 2 items
- AR-9 Rifle 3 items
- Bolt-Action Receiver 2 items
- Bolt-Action Rifle 25 items
- Complete Upper 1 item
- Firearm 56 items
- Handguard 7 items
- Handgun 578 items
- Lever-Action Rifle 24 items
- Magazine 1 item
- Pistol Caliber Carbine 62 items
- Short-Barrel Rifle 32 items
- Shotgun 45 items
- Suppressor 129 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
- 11.75" 1 item
- 12" 7 items
- 12.5" 5 items
- 13" 5 items
- 13.5" 6 items
- 13.6" 1 item
- 14" 1 item
- 14.5" 4 items
- 15" 17 items
- 15.25" 1 item
- 16.5" 1 item
Size
Thread Pitch
Twist Rate
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