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Arms Unlimited acquires ColtParts.com to expand Colt replacement parts offerings(Post)
October 2017 – Arms Unlimited, the nation’s largest law enforcement distributor of Colt firearms, is excited to announce the acquisition of ColtParts.com in October 2017. This strategic move strength
FBI Awards Colt Replacement Carbine Parts IDIQ Contract to Arms Unlimited(Post)FBI Awards Colt Replacement Carbine Parts IDIQ Contract to Arms UnlimitedArms Unlimited, a leading supplier of firearms and accessories, has been awarded a $9 million Indefinite Delivery/Indefinite
Arms Unlimited Resumes Sales of Firearm Parts to California Residents Through Innovative Compliance Verification System(Post)Arms Unlimited along with its affiliate website ColtParts.com, is excited to announce the resumption of direct sales and shipments to customers in California. This milestone is made possible by the im
Department Trade Program(Page)What We Do Arms Unlimited helps police departments unleash the financial power of their armories by converting surplus items such as old / unwanted / outdated / evidenced / seized firearms,...
Las Cruces Police Department selects ArmsUnlimited to supply Magtech Ammunition(Post)LAS VEGAS, NV - JULY 2017 Arms Unlimited is proud to announce that sales professional Jack Chuang successfully responded to a request for proposal from the Las Cruces Police Department in New Mexico f
Arms Unlimited celebrates 10 Years of partnership with Gentex/Ops-Core as Distributor(Post)Arms Unlimited proudly celebrates ten years as an authorized distributor for Gentex Corporation and its Ops-Core brand of high-performance helmet and headborne systems. Since 2012, Arms Unlimited ha
El Cajon Police Department Selects Arms Unlimited for Hand Thrown Diversionary Devices(Post)EL CAJON, California. – April 16, 2026 – Arms Unlimited today announced that the El Cajon Police Department has selected the company, along with one other vendor, to supply a portion of its hand thr
Fresno Police Department selects Arms Unlimited to supply Colt M4 Patrol Rifles(Post)LAS VEGAS NV - JANUARY 2017 - Arms Unlimited announced that the Fresno Police Department in California has selected the Colt M4 Carbine and Arms Unlimited as the vendor to supply 270x Colt M4 Carbine
San Diego Police Department buys Ops-Core Ballistic Helmets from ArmsUnlimited(Post)LAS VEGAS, NV. – November 8, 2023 – Arms Unlimited today announced that the San Diego Police Department has awarded the company a contract to supply 105x Ops-Core FAST ballistic helmets for a total va
Columbus Police Department Selects Arms Unlimited to Supply Flash Bang Devices Following Competitive Bid(Post)COLUMBUS, Ohio – May 4, 2026 – The Columbus Police Department has chosen Arms Unlimited as its supplier of flash bang devices for use by its officers. The selection was made through a formal competiti
How to Disassemble/Reassemble an AR15(Page)How to Disassemble and Reassemble an AR-15: A Step-by-Step Guide The AR-15 is one of the most popular rifles in the world, prized for its modularity and ease of maintenance. Whether you’re cleaning,...
USDOJ Sues D.C. Over Assault Weapons and Suppressor Bans(Post)MAY 15 - 2026 - In another bold and decisive victory for law-abiding gun owners nationwide, the U.S. Department of Justice has once again stepped up to defend the Constitution—this time taking direct
How to Clean your Firearm(Page)How to Clean your Firearm: A Comprehensive Guide for Gun Owners Proper firearm maintenance is essential for safety, performance, and longevity. Whether you're a competitive shooter, hunter, law...
Shipping & Returns(Page)Shipping Policy Arms Unlimited generally ships orders for in-stock items within 24-48 hours using USPS or UPS. If flat rate shipping is selected a provider will be selected based upon the size,...
NFA $200 Tax Eliminated on Suppressors, SBRs, SBSs, and $5 Tax on AOWs – Effective January 1, 2026(Post)In a monumental victory for Second Amendment advocates, President Donald Trump's "One Big, Beautiful Bill" – signed into law on July 4, 2025 – includes a game-changing provision that eliminates the
Why the Supreme Court Must Step In to End the Assault on Second Amendment Rights(Post)In the three years since the Supreme Court's landmark decision in NYSRPA v. Bruen (2022), America's gun laws have devolved into a Swiss cheese of permissions and prohibitions that turns law-abiding
Best 9mm PCCs of 2025: Top Picks and the Game-Changing NFA Shift on the Horizon(Post)The Top Picks and the Game-Changing NFA Shift on the Horizon: In the ever-evolving world of firearms, pistol caliber carbines (PCCs) chambered in 9mm have carved out a dominant niche by 2025. These
Company Policies(Page)Shipping Policy Arms Unlimited generally ships orders for in-stock items within 24-48 hours using USPS or UPS. If flat rate shipping is selected a provider will be selected based upon the size,...
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On Sale
H&K UMP Cut Receiver Parts
Now: $399.99Was: $689.95Heckler & Koch UMP cut receiver parts. Two polymer sections from an HK UMP receiver, sold as cut / destroyed parts only. Markings on the longer piece: HK UMP Heckler & Koch GmbH – Made in...Now: $399.99Was: $689.95 -
On Sale
PE57 Parts Kit Bag – Surplus Components (Stock, Bipod Legs, Hardware & Accessories)
Now: $89.99Was: $99.99Surplus PE57 parts kit bag containing a variety of original components as shown. This kit includes a black polymer buttstock, a pair of black bipod legs, multiple bags of tan polymer parts...Now: $89.99Was: $99.99 -
Colt Lower Receiver Parts Kit
Colt
$99.00This is a genuine factory Colt lower receiver parts kit designed for AR-15 and M4 type rifles. It includes all the essential components needed to complete or rebuild a mil-spec lower receiver with...$99.00 -
On Sale
Colt M4/AR15 High Wear Parts Repair Kit
Colt
Now: $25.00Was: $30.00Factory Colt replacement/repair kit of high wear parts for AR15/M4/M5/M16 rifles.Now: $25.00Was: $30.00 -
On Sale
Colt AR15/M4 Mil-Spec Fire Control Parts Kit
Colt
Now: $74.99Was: $89.99This is a genuine factory Colt mil-spec fire control parts kit for AR-15 and M4 semi-automatic rifles. It includes all the essential components needed to complete or replace the fire control group...Now: $74.99Was: $89.99 -
Out of StockOn Sale
Colt 5.56mm Cleaning Kit Set w/ Pouch for AR15/M4 Rifles
Colt
Now: $11.00Was: $13.955.56mm Field/Emergency/Range Cleaning Kit - compatible with .223 cal, .22 cal, 5.56mm barrels. Contains All Necessary Cleaning Tools - .22 cal brass brush, .22 cal chamber brush, double-ended nylon...Now: $11.00Was: $13.95 -
On Sale
Colt M4/M16 Full-Auto Fire Control Parts Kit
Now: $150.00Was: $169.00All factory Colt full auto mil-spec fire control parts needed for the M4/M16 select-fire rifle. Includes: Trigger Trigger Spring Disconnector Disconnector Spring Hammer Hammer Spring 2 x...Now: $150.00Was: $169.00 -
$19.95 -
On Sale
Colt AR15/M4 Trigger Guard Assembly
Colt
Now: $11.99Was: $14.00Genuine Colt Trigger Guard Assembly, part number SP61970. This is the classic hinged AR-15 / M16 trigger guard that pivots downward for easier access when wearing gloves. The assembly comes complete...Now: $11.99Was: $14.00 -
On Sale
Colt 1911 Mainspring Housing Pin
Now: $2.95Was: $4.95Factory Colt 1911 mainspring housing pin, carbon steel blue finishNow: $2.95Was: $4.95 -
On Sale
Colt 1911 Magazine Release | Stainless Steel
Colt
Now: $9.00Was: $19.99Factory Colt 1911 magazine release/catch for Government/Commander/Officer series pistols.Now: $9.00Was: $19.99 -
Out of StockOn Sale
Colt 1911 Sear | Teflon Coated Steel
Now: $15.00Was: $15.95Factory Colt 1911 sear, teflon coated carbon steelNow: $15.00Was: $15.95 -
Out of Stock
Colt Take Down Pin Detent
Colt
$2.99Colt Take Down Pin Detent SP61698 – Lower Receiver Factory Colt SP61698 Take Down Pin Detent. This is the smaller detent used in the lower receiver to retain the rear take-down pin on M16, M4, and...$2.99 -
On Sale
Colt M5 Ambi Bolt Catch Cross Pin
Now: $9.99Was: $11.95Factory Colt bolt catch cross pin for M5 rifle series.Now: $9.99Was: $11.95 -
On Sale
Colt 1911 Grip Screw for Government 70 Series
Now: $7.50Was: $7.99Factory Colt 1911 Grip Screw for Government 70 Series pistolsNow: $7.50Was: $7.99 -
On Sale
Now: $1.99Was: $2.95 -
Colt AR15 Ejection Port Cover Hinge Pin
Colt
$4.99Colt AR-15 Ejection Port Cover Hinge Pin SP61658 Factory Colt SP61658 Ejection Port Cover Hinge Pin. This pin secures the ejection port (dust) cover to the upper receiver on Colt AR-15, M16, and M4...$4.99 -
Out of Stock
Colt D-Bolt Spring
Colt
$4.99Colt D-Bolt Spring SP50381 – Factory Original for D-Frame Revolvers Factory original Colt SP50381 D-Bolt Spring (also called the bolt spring or cylinder latch spring). This small internal component...$4.99 -
On Sale
Colt Bolt Repair Kit
Colt
Now: $24.99Was: $42.00Factory Colt repair kit for AR15/M4/M16 rifle bolts.Now: $24.99Was: $42.00 -
Colt M4/AR15 Trigger Guard Roll Pin
Colt
$2.99Colt M4 / AR-15 Trigger Guard Roll Pin – SP95106 (Spring Pin) – Sold Individually Genuine Colt SP95106 trigger guard roll pin (also known as a spring pin). This is the factory-spec slotted spring pin...$2.99 -
On Sale
Colt 10mm Delta Elite Recoil Spring Guide
Colt
Now: $9.99Was: $14.99Colt recoil spring guide, part SP54729, for the 10mm Delta Elite with the two-spring recoil system. This guide rod is specific to that setup. It is plastic so it can absorb energy from the...Now: $9.99Was: $14.99 -
Out of Stock
Colt M16/M4/AR15 Bolt Carrier Key
Colt
$49.99Colt M16 / M4 / AR-15 Bolt Carrier Key SP61547 – 5.56mm Gas Key Factory Colt SP61547 Bolt Carrier Key (commonly called the Gas Key) for M16, M4, and AR-15 5.56mm bolt carrier assemblies. This key is...$49.99 -
AK-Pattern Furniture & Cleaning Kit Lot – 2 Wooden Buttstocks + 2 Polymer Grips + Cleaning Kit
$179.99Used AK/AKM-style furniture lot. Includes: Two fixed wooden buttstocks (classic AK shape with sling swivel and mounting holes). The wood is very smooth, lightweight, and feels like it has little to...$179.99 -
Out of Stock
Colt AR15 Upgraded Fire Control Parts Kit
Colt
$99.00The Colt AR15 Upgraded Fire Control Parts Kit is nickel coated which increases reliability because it hardens the parts during the coating process and also creates a smoother operation due to the...$99.00 -
Out of Stock
Glock G18/G18C 9mm Machine Pistol Complete Parts Kit
GLOCK
$2,995.00Complete GLOCK G18 and G18C 9mm Machine Pistol Parts Kit, all original Austrian parts with B&T USA made G18 spec barrel. New unfired condition, in the original Glock hard plastic case. INCLUDES: G18...$2,995.00 -
On Sale
Prvi Partizan PPU 9mm Luger Blank Ammunition in Brass Case - 50 Round Box
Now: $14.71Was: $15.99Prvi Partizan (PPU) PPB9L 9mm Luger blanks are full brass-cased centerfire cartridges for training, reenactments, film work, and ceremonial use. They produce noise and muzzle flash without a...Now: $14.71Was: $15.99 -
Out of StockOn Sale
CZ Skorpion Vz61 .32 ACP Machine Pistol | Complete Parts Kit
CZ
Now: $199.00Was: $269.00Factory original CZ Vz61 Skorpion .32 ACP Machine Pistol, complete parts kit minus receiver All police trade-ins are fully functional but aesthetic conditions vary. All used items are sold as is...Now: $199.00Was: $269.00 -
On Sale
Heckler & Koch MP5 9mm SMG Complete Parts Kit
Heckler & Koch
$1,500.00 - $1,600.00HK German MP5 9mm Used Parts Kit Complete - Without Receiver. Trigger pack included will vary, NO guarantee which trigger pack you will receive All MP5 Kits: • HK 3-Lug MP5 Barrel - cold hammer...$1,500.00 - $1,600.00 -
Out of Stock
Colt AR15/M4 Mil-Spec Lower Parts Kit
Colt
$69.00Factory Colt lower parts for AR15/M4 type rifles. Includes: 1. Grip 2. Grip Screw Washer 3. Grip Screw 4. Bolt Catch 5. Bolt Catch Plunger 6. Bolt Catch Spring 7. Bolt Catch Roll Pin 8. Mag...$69.00 -
On Sale
Colt SCW Pistol 5.56mm Semi-Auto Lower Receiver Assembly with Parts
Colt
Now: $799.00Was: $999.00"SCW Carbine" model designation engraved on the lower receiver with SCW suffix serial number (example: 123456SCW). Limited production of 800, exclusive for ArmsUnlimited. Colt installed correct...Now: $799.00Was: $999.00 -
On Sale
Colt SCW Carbine 5.56mm Semi-Auto Lower Receiver Assembly with Parts
Colt
Now: $1,199.00Was: $1,399.00Proper "SCW Carbine" model designation engraved on the lower receiver with SCW suffix serial number (example: 123456SCW). Limited production of 800, exclusive LE/MIL product for ArmsUnlimited. Colt...Now: $1,199.00Was: $1,399.00 -
On Sale
Black Tactical Gas Mask Bag Carrier with ID Window and Dual Side Pouches
Now: $19.95Was: $29.99Used black tactical bag made to carry a gas mask or respirator, plus small accessories. Main compartment is sized for a protective mask. Two additional compartments sit off the main body for filters,...Now: $19.95Was: $29.99 -
On Sale
ColtParts Barrel Spline Socket Rod for AR15/M4 Upper Receivers
AU
Now: $49.99Was: $69.99The ColtParts.com Barrel Spline Socket Rod is a vital tool that securely holds an upper receiver assembly for maintenance and assembly work. The removal and installation of barrels, flash hiders, gas...Now: $49.99Was: $69.99 -
Out of Stock
ColtParts Barrel Spline Socket Rod for AR10/SR25 Upper Receivers
AU
$69.99The ColtParts.com Barrel Spline Socket Rod is a vital tool that securely holds an upper receiver assembly for maintenance and assembly work. The removal and installation of barrels, flash hiders, gas...$69.99 -
On Sale
Smith & Wesson Magazine Follower for M&P/Compact/M2.0/357 SIG/40cal
Smith & Wesson
Now: $1.50Was: $2.06This Smith & Wesson factory part may require Disassembly and Assembly to replace it. Some parts may require installation and fitting by a qualified gunsmith. Factory replacement parts are...Now: $1.50Was: $2.06 -
On Sale
Smith & Wesson Recoil Guide Rod for M&P Compact 9mm/.40cal
Smith & Wesson
Now: $4.00Was: $10.16Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts. Some parts may require installation by a...Now: $4.00Was: $10.16 -
Out of Stock
$36.00 -
$36.00 -
Colt M16/M4/AR15 Auto Trigger
Colt
$35.00Colt M16/M4/AR15 Auto Trigger P/N: SP61955 Factory Colt automatic trigger for M16, M4, and select-fire AR-15 pattern rifles. Replacement fire-control part only. This is an auto trigger. All NFA rules...$35.00 -
On Sale
ColtParts AR15 Tool Kit
Colt
Now: $79.00Was: $106.00Its modularity has made the AR platform America's most popular rifle, and the only thing to match its versatility is the ColtParts AR Toolkit. We included all the specialty tools you need to maintain...Now: $79.00Was: $106.00
Featured
On Sale
PMP .50 BMG M1A3 BLT Browning Linked Ammo 660 Grain Full Metal Jacket - 100-Round Belt
Now:
$399.00
Was:
$500.00
South African military ammo, 100 round linked belt.
Authentic South African military surplus .50 BMG (12.7×99mm NATO) Ball ammunition, d
On Sale
Colt M4 Carbine 5.56mm Semi-Auto Rifle w/ Full Length MLOK Handguard & Vortex Sparc Red Dot
Colt
Now:
$799.00
Was:
$999.00
Colt M4 Carbine 5.56mm Semi-Auto Rifle with 16" barrel, full length MLOK handguard and Vortex Sparc Red dot sight. These can come in LE or CR prefix, government profile barrels.
All police...
On Sale
B&T Telescopic Retractable Stock w/ Buffer for MP5/SP5/HK94
B&T
Now:
$499.00
Was:
$650.00
B&T's telescopic retractable 5-position stock assembly for Heckler & Koch models, MP5, SP5 and HK94 and clones. The B&T stock provides a comfortable and solid shoulder support while remaining very...
On Sale
Ammo Inc 9mm 115-Grain Ammo Jacketed Hollow Point - Box of 50 Rounds
Now:
$20.00
Was:
$39.95
Box of 50 Rounds
Ammo Incorporated 9mm 115-grain Jacketed Hollow Point (JHP) is a standard-pressure self-defense and target load featuring a muzzle velocity of roughly 1,160 feet per second and...
On Sale
PMP .50 BMG M1A3 BLT Browning Linked Ammo 660 Grain Full Metal Jacket
Now:
$1,169.00
Was:
$1,500.00
South African military ammo can of 300 rounds total. Three 100-round belts.
Authentic South African military surplus .50 BMG (12.7×99mm NATO) Ball ammuni
On Sale
Safariland V1 External Carrier – Side Opening, Advanced Webless System
Safariland
Now:
$169.00
Was:
$229.00
Safariland V1 Overt/External Carrier – Side Opening with Advanced Webless System SKU: SBA-V1-SIDE-AWS
Qualified Personnel Only
SBA-G V1 AWS VCS Carrier SIZE 2817-2616
Modern side-opening...
M79 Thumper 40mm Grenade Launcher
$10,500.00
The M79 40mm launcher is a single-shot, break-action, shoulder-fired grenade launcher developed for the US Army in the 1950s and officially adopted in 1960. Known as the "Thumper," it was designed to...
On Sale
Walther PPQ Q5 Match SF Vintage 9mm Semi-Auto Pistol
Walther
MSRP:
$4,499.00
Now:
$3,099.00
Was:
$3,899.00
Includes 2x magazines and original hard case.
Emphasizing the sleek appearance of your firearm doesn’t have to come at the cost of effectiveness!
WALTHER’s case color hardening combines both proven...
SIG Romeo4T Pro Red Dot Sight
Sig Sauer
$549.99
The SIG Sauer ROMEO4T-PRO (SOR44101) is a rugged, mil-spec tactical red dot sight engineered for hard professional use on modern semi-automatic pistols, MSR/AR platforms, shotguns, and more. Built...
On Sale
On Sale
Beretta 20X Bobcat .22LR Pistol
Beretta
Now:
$399.00
Was:
$449.00
INTRODUCING THE BERETTA 20X BOBCAT, an ultra-concealablepistol designed with the revolutionary Effortless Loading System(ELS) featuring a push-button mechanism that eliminates theneed to rack the...
On Sale
Vortex Micro 3X Magnifier
Vortex
MSRP:
$449.99
Now:
$239.00
Was:
$299.99
The Micro3x magnifier is made for quick, close-quarters transitions and is ready to go right out of the box. Compact and lightweight, it offers fast target acquisition at point-blank range while...
On Sale
FN SS198LF 5.7x28mm Ammo 27 Grain Hollow Point
FN
Now:
$1,299.00
Was:
$2,279.00
Case of 2,000 rounds, new production, non-corrosive, boxer primed, reloadable brass cases
The FN SS198LF 5.7x28mm is a hyper-velocity hollow point duty round with a green tip for identification. A...
On Sale
Blue Force Gear - Universal Wire Loop "Uloop"
Blue Force Gear
MSRP:
$19.95
Now:
$13.00
Was:
$17.99
The ULoop™ brings a level of versatility that is unmatched by any other sling hardware. Code named the “Uber Loop” it is a quick-detach version of our popular Universal Wire Loop, offering even...
On Sale
FN 509 MRD-LE 9mm Compensated Pistol
FN
MSRP:
$1,026.00
Now:
$769.00
Was:
$840.68
SPECS
CALIBER: 9mm
OPERATION: Double-action
MAG CAPACITY: 17 Rd.
WEIGHT: 28.8 oz.
BARREL LENGTH: 4.02"
OVERALL LENGTH: 7.4"
TWIST RATE: 1:10" RH
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On Sale
On Sale
Colt SCW Carbine 5.56mm Semi-Auto 10.3" Monolithic Short Barrel Rifle w/ Side Folding Stock - USED PD TRADE
Colt
Now:
$1,399.00
Was:
$2,299.00
Proper "SCW Carbine" model designation engraved on the lower receiver with SCW suffix serial number (example: 123456SCW). Limited production of 800, exclusive LE/MIL product for ArmsUnlimited. Colt...
SIG Hexium556 Inconel 5.56mm Flow Suppressor | Direct Thread HUB Compatible
Sig Sauer
$899.99
The SIG SAUER HEXIUM 5.56mm Inconel flow suppressors brings low back pressure and quiet, clean
On Sale
SIG P320 Flux Raider 9mm Pistol w/ Rapid Deploy Stabilizing Brace & RomeoX Pro Enclosed Red Dot Sight
Sig Sauer
Now:
$1,505.00
Was:
$1,699.00
The SIG P320-FLUX Raider package by AU is ready to deploy right out of the box. A fully modular platform comes complete with a SIG RomeoX Pro Enclosed Red Dot sight and 2x 21-round magazines.The...
On Sale
Colt SCW Carbine 5.56mm Semi-Auto Rifle w/ Side Folding Stock | 16" Barrel
Colt
Now:
$1,199.00
Was:
$1,599.00
Proper "SCW Carbine" model designation engraved on the lower receiver with SCW suffix serial number (example: 123456SCW). Limited production of 800, exclusive AU offering.
Description:
The Colt SCW...