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 30551 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 rating05/13/25MMichael W.Verified Buyer5.0 star rating05/13/25Game changerReview by Michael W. on 13 May 2025 review stating Game changerThese “handstops” are great. I’m in the process of putting them on every build i have, and unless something better comes along, they will be on every build going forwardOn Emissary Development M-LOK HandbrakeSSgt O.Verified Buyer5.0 star rating05/13/25Staccato did it AGAIN!Review by Sgt O. on 13 May 2025 review stating Staccato did it AGAIN!What can you say! I have 6 already! And I have only owned my XC for a few months!! They are flat out amazing! (Don’t listen to negative reviews just because someone ordered a larger mag than they meant too) - I’m giving this a rating on how it actually performs! And it’s 5 stars- because it’s the flawless feed performance, and super quick connection. both of which a shooter/competitor/& a warfighter demand!On Staccato 2011 9mm/38 Super Magazine - 140mm/20rdSSgt. O.Verified Reviewer5.0 star rating05/13/25REAL Perfection is not CHEAP, Nor is it POLYMER!Review by Sgt. O. on 13 May 2025 review stating REAL Perfection is not CHEAP, Nor is it POLYMER!Lightning speed, YET with EVERY double tap round drill being “key-holed” -Please let me just admit right now! I’m a Marine Infantry NCO, and this UNBELIEVABLE pistol configuration (WITHOUT ANY QUESTION) actually and truly MAKES me a way more accurate, confident, and proficient side arm shooter!! That’s the most honest and humble way I can explain this superior pistol!! It honestly CHANGED my entire situation, and took away the single weakest piece of my overall “tactical proficiency”
and, Ohh yeah, for those that like to be envied …. . whether at the range, or on job… you WILL BE!!!…. That I assure you!
But for the most honest of reasons, not just because it’s as fast and double tap accurate, as a USPSA Race gun. But because I want my back up to always fire and be as accurate as possible!
Last word to sum this freaking nail driver up! BUTTER!!! 🧈
A real single finger🧈action smooth Slide!!! (That should explain enough to those who are extremely tired of industry standards!!
Now I am as accurate with my side arm as all of my “other” tactical platforms! Complete bliss! And worth more if you ask me! For the kind of total tactical safe mindedness it now provides me!
Thank You Staccato!!! I Love your company! And Rainer for making it so fast and easy to get my 1st baby to me!On Staccato 2011 XC DPO 9mm Pistol – BlackoutJJamieVerified Buyer5.0 star rating05/12/25Bang for buckReview by Jamie on 12 May 2025 review stating Bang for buckBought this upper for my son, he adores this rifle. Mated to an M4 lower with an ACOG on top, this is a top notch upper with all the bells and whistlesOn Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper ReceiverTTimothy H.Verified Buyer5.0 star rating05/12/25BCM MK 2 LowerReview by Timothy H. on 12 May 2025 review stating BCM MK 2 LowerGreat lower!On Bravo Company MFG (BCM) AR-15 Complete Lower Receiver w/ MK2RMS-M1T0 Mod 2 SOPMOD - WIDEBODY - FDE$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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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" 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" 59 items
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- 4.32" 1 item
- 4.4" 18 items
- 4.45" 2 items
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- 4.48" 2 items
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- 4.5" 21 items
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- 4.57" 1 item
- 4.6" 18 items
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- 4.7" 24 items
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- 4.78" 1 item
- 4.8" 13 items
- 4.89" 3 items
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- 4.925" 1 item
- 4.94" 1 item
- 5" 105 items
- 5.09" 1 item
- 5.1" 3 items
- 5.19" 2 items
- 5.2" 1 item
- 5.28" 2 items
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- 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
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- 7" 5 items
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- 7.72" 1 item
- 7.75" 3 items
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- 7.94" 1 item
- 8" 17 items
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- 9" 3 items
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- 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" 2 items
- 12.5" 4 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" 97 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" 20 items
- 18.43" 1 item
- 18.5" 30 items
- 19.1" 4 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 19 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 47 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 126 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 18 items
- 7.62x39 35 items
- 7.62x51 13 items
- 7mm-08 Rem 1 item
- 8.6 Blackout 7 items
- 9mm 529 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 30 items
- Dan Wesson 2 items
- Daniel Defense 18 items
- Danger Close Armament 20 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 2 items
- FosTecH 2 items
- Foxtrot Mike 2 items
- Geissele 1 item
- Genesis Arms 3 items
- Global Ordnance 1 item
- Glock 30 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 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 1 item
- 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
- 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 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 23 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 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 15 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 8 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 1 item
Optic Footprint
Option
Platform
- 1911 15 items
- AR-9 2 items
- AR-10/LR308 10 items
- AR-15 53 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 41 items
- AR-10 Rifle 25 items
- AR-15 Complete Upper Receiver 1 item
- AR-15 Rifle 114 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 26 items
- Complete Upper 1 item
- Firearm 56 items
- Handguard 7 items
- Handgun 582 items
- Lever-Action Rifle 24 items
- Pistol Caliber Carbine 62 items
- Short-Barrel Rifle 32 items
- Shotgun 44 items
- Suppressor 131 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" 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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