AR Upper Parts

All products
Air Guns0 products
- Air Pistols0 products
Ammunition5,631 products
- Ammo Storage1 product
- Handgun Ammunition1,466 products
- Other Ammunition4 products
- Rifle Ammunition2,095 products
- Rimfire Ammunition167 products
- Shotgun Shells1,898 products
Ammunition Reloading2 products
- Reloading Equipment1 product
  - Other Reloading Equipment0 products
  - Reloading Dies1 product
- Reloading Supplies1 product
  - Reloading Bullets1 product
Archery & Bow Hunting275 products
- Archery Supplies273 products
- Bowfishing Accessories1 product
Backpacks and Gearbags29 products
Black Powder & Muzzleloaders33 products
- Black Powder & Pryodex3 products
- Black Powder Bullets4 products
- Black Powder Pistols & Muzzleloader Pistols4 products
- Black Powder Rifles & Muzzleloader Rifles13 products
- Muzzleloading Primers1 product
- Other Muzzleloader Supplies & Black Powder Parts5 products
- Percussion Caps0 products
Camping and Outdoor Accessories2 products
Camping Lights0 products
Class 3 Firearms, NFA & Destructive Devices816 products
- Any Other Weapon (AOW)0 products
- Class 3 Parts & Accessories573 products
- Destructive Devices1 product
- Short Barrel Rifles (SBR)18 products
- Short Barrel Shotguns (SBS)3 products
- Silencers & Suppressed Firearms220 products
Clothing, Jewelry, Watches5 products
- Clothing5 products
  - Backpacks, Totes & Luggage5 products
Concealed Carry1 product
- Concealed Carry Holsters1 product
Duty Gear2 products
- Magazine Pouches2 products
Fishing Tackle0 products
- Tackle Storage0 products
Flamethrowers2 products
Gun Parts7,672 products
- 1911 Parts108 products
- AK Parts107 products
- AR Lower Parts687 products
- AR Upper Parts931 products
- AR10 Parts28 products
- AR15 Parts502 products
- Glock Parts235 products
- Gun Parts Kits98 products
- Handgun Parts1,138 products
- Lever Action Parts37 products
  - Lever Action Handguards15 products
- Other Gun Accessories & Parts1,147 products
- Rifle Parts1,563 products
- Shotgun Parts791 products
- Slings & Sling Parts50 products
  - Slings15 products
  - Slings Parts & Accessories35 products
- Weapon Lights205 products
Guns & Firearms12,688 products
- Combination Guns19 products
- Handguns4,496 products
- Rifles5,970 products
- Shotguns2,221 products
Holsters & Gun Leather11 products
Hunting Supplies & Gear338 products
- Bags & Packs17 products
- Flashlights108 products
- Game Cameras4 products
- Hunting Accessories199 products
- Hunting Scents & Deer Lure1 product
- Other Hunting Gear9 products
Knives & Swords1 product
- Fixed Blade Knives0 products
- Hunting Knives1 product
Launchers2 products
Magazines2,998 products
- AK Magazines58 products
- AR Magazines325 products
- Handgun Magazines1,769 products
- Magazine Accessories115 products
- Rifle Magazines642 products
- Shotgun Magazines89 products
Miscellaneous22 products
- Everything Else21 products
Pepper Spray / OC5 products
Personal Defense/Less-Lethal17 products
- Body Armor2 products
- Less-Lethal Accessories2 products
- Less-Lethal Ammunition13 products
- Less-Lethal Pistols & Rifles0 products
Range Bags & Cases3 products
Range Gear2 products
- Shot Timers1 product
- Target Cameras1 product
Scopes, Sights & Optics6,214 products
- Binoculars21 products
- Gun Scopes941 products
- Gun Sights1,431 products
- Laser Sights74 products
- Night Vision88 products
- Optics Accessories50 products
- Range Finders10 products
- Red Dot Mounts184 products
- Red Dots Sights443 products
- Scope Accessories & Scope Parts2,724 products
- Sight Magnifiers19 products
- Spotting Scopes28 products
- Thermal Sights201 products
Shooting Supplies52 products
- Bipods & Tripods8 products
- Gun Cleaning Kits & Gun Cleaning Supplies8 products
- Gun Rests, Vises & Benches2 products
- Gunsmithing Tools & Gunsmith Supplies31 products
- Shooting Targets3 products
Arabesque1 product
Bushido Blade1 product
Cathedral3 products
Catrina2 products
Celestial Vine1 product
Celtic Honor1 product
Classic Scroll7 products
Crusader1 product
Dia de los Muertos1 product
El Defe de jefes1 product
Lotus Leaf1 product
Memento Vivere2 products
Naga Warrior1 product
Patriot2 products
Titan1 product
Uncategorixed11 products
Vine & Berries12 products
Vine and Berries0 products

Showing 321–340 of 931 resultsSorted by average rating

Show 9 12 18 24

Filters

ARMASPEC GAS TUBE MID LENGTH – 11.75″

$13.49

ARMASPEC GAS TUBE MID LENGTH - 11.75"

Add to wishlist

Purchase & earn 13 points!Add to cart

CMMG Firing Pin AR15

AR Bolt Carrier Groups

$10.00

CMMG Firing Pin AR15

Add to wishlist

Purchase & earn 10 points!Read more

WILSON COMBAT SHIM KIT MOUNT 1/2X28

AR Muzzle Devices

$12.95

WILSON COMBAT SHIM KIT MOUNT 1/2X28

Add to wishlist

Purchase & earn 13 points!Add to cart

WILSON COMBAT FLASH HIDER A2 BIRDCAGE 5.56MM

AR Muzzle Devices

$10.95

WILSON COMBAT FLASH HIDER A2 BIRDCAGE 5.56MM

Add to wishlist

Purchase & earn 11 points!Add to cart

Troy Gas Divert Pneuma Ambi Charging Handle 5.56 Ambi Black

AR Charging Handles

$100.00

Troy Gas Divert Pneuma Ambi Charging Handle 5.56 Ambi Black

Add to wishlist

Purchase & earn 100 points!Add to cart

PHASE 5 DUAL LATCH CHARGING – HANDLE FOR AR-15 FDE

AR Charging Handles

$64.99

PHASE 5 DUAL LATCH CHARGING - HANDLE FOR AR-15 FDE

Add to wishlist

Purchase & earn 65 points!Read more

PHASE 5 DUAL LATCH CHARGING – HANDLE FOR AR-15 BLACK

AR Charging Handles

$64.99

PHASE 5 DUAL LATCH CHARGING - HANDLE FOR AR-15 BLACK

Add to wishlist

Purchase & earn 65 points!Add to cart

GUNTEC AR15 SLIP OVER FAKE – SUPPRESSOR BLACK

AR Muzzle Devices

$30.00

GUNTEC AR15 SLIP OVER FAKE - SUPPRESSOR BLACK

Add to wishlist

Purchase & earn 30 points!Add to cart

YHM SRX Short QD Muzzle Brake .578-28 Thread

AR Muzzle Devices

$84.75

YHM SRX Short QD Muzzle Brake .578-28 Thread

Add to wishlist

Purchase & earn 85 points!Read more

Radical Defense KFM HUB Mount

AR Muzzle Devices

$50.00

Radical Defense KFM HUB Mount

Add to wishlist

Purchase & earn 50 points!Add to cart

14.5” HK416 SUPER MODULAR RAIL SMR M-LOK DDC

$550.00

14.5'' HK416 SUPER MODULAR RAIL SMR M-LOK DDC

Add to wishlist

Purchase & earn 550 points!Add to cart

MK14 SUPER MODULAR RAIL HANDGUARD 15” M-LOK DDC

$400.00

MK14 SUPER MODULAR RAIL HANDGUARD 15'' M-LOK DDC

Add to wishlist

Purchase & earn 400 points!Add to cart

13.5” SUPER MODULAR RAIL HANDGUARD M-LOK BLACK

$350.00

13.5'' SUPER MODULAR RAIL HANDGUARD M-LOK BLACK

Add to wishlist

Purchase & earn 350 points!Add to cart

LANTAC SMOOTHCAM DOMED CAM PIN – 223/5.56

AR Bolt Carrier Groups

$27.99

LANTAC SMOOTHCAM DOMED CAM PIN - 223/5.56

Add to wishlist

Purchase & earn 28 points!Read more

CMC Triggers AR15/AR10 Gas Block Low Profile 0.750

$35.99

CMC Triggers AR15/AR10 Gas Block Low Profile 0.750

Add to wishlist

Purchase & earn 36 points!Add to cart

Omega Rail 9.0

$264.00

Omega Rail 9.0

Add to wishlist

Purchase & earn 264 points!Add to cart

Edge Carbine Two-Piece M-Lok Rail

$47.97

Edge Carbine Two-Piece M-Lok Rail

Add to wishlist

Purchase & earn 48 points!Add to cart

Firefield Verge M-LOK Rail 7″

$47.97

Firefield Verge M-LOK Rail 7"

Add to wishlist

Purchase & earn 48 points!Read more

Sig Sauer Handguard M400 Tread Enhanced 15″ MLOK – Black

$127.00

Sig Sauer Handguard M400 Tread Enhanced 15" MLOK - Black

Add to wishlist

Purchase & earn 127 points!Add to cart

Sig Sauer Handguard M400 Tread Enhanced 13″ MLOK – Black

$127.00

Sig Sauer Handguard M400 Tread Enhanced 13" MLOK - Black

Add to wishlist

Purchase & earn 127 points!Add to cart

At Great Lakes Firearms of Porter, Indiana, our mission is to provide our customers with the finest firearms and ammunition available, while promoting responsible gun ownership and safety.

Quick Links

Useful Link

Great Lakes Firearms

Newsletter

Copyright 2025, Great Lakes Firearms | All Rights Reserved.

Start typing to see products you are looking for.