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  • Firearms Unknown National City
  • Address: 416 National City Blvd, Unit B, National City, Ca 91950
  • Telephone: 619-507-3174
  • Opening hours: 11AM - 7PM Every Day
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  • Firearms Unknown Oceanside
  • Address: 1906 Oceanside Blvd, Unit K, Oceanside, CA 92054
  • Telephone: 760-730-5599
  • Opening hours: 11AM - 7PM Every Day
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  • Laguna Hills
  • Address: 23016 Lake Forest Drive STE E, Laguna Hills, CA 92653
  • Telephone: (949) 601-3227
  • Opening hours: 11AM-7PM
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  • Yuma Retail
  • Address: 801 W. 32nd St. Yuma, AZ 85364
  • Telephone: Call/Text: (928) 955-FUFU (3838)
  • Opening hours: 11AM - 7 PM

Upper Parts

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255 Products available

Effin' A Mark I Comp. SS .308

The Effin-A Compensator Allows You To Fine-Tune Your Rifle The Exact Way You Want It

$99.99
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Caspian LR308 M-Lok Rail

Firearms Unknown 17" Caspian M-Lok Rail Handguard With 2 QD Sling Points

$199.99
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FU Caspian 15" Handguard - FDE

Firearms Unknown 15" Caspian M-Lok Rail Handguard With 2 QD Sling Points

$199.99
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Caspian AR15 M-Lok Rail

Caspian AR15 M-Lok Rail Handguard

$180.00
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Blitz Gestalt AR15 M-Lok Rail

Blitzkrieg Tactical Gestalt M-Lok Rail handguard

$160.00
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BCM Gunfighter MCMR AR-15 Black Hardcoat Anodized Aliminum 15" M-LOK

Bravo Company, 15" MLOK Compatible Modular Rail (MCMR), For AR Rifles, Black

$210.00
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MFT Tekko Polymer AR15 7'' Drop In MLOK Rail Grey

MFT 7" Drop-In M-Lok Rail Gray

$39.99
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Phase 5 15" Lo-pro Slope Nose Rail

Phase 5 Weapon Systems, Lo-Pro Slope Nose Free Float M-LOK Rail, 15", Black Finish, Steel barrel nut and mounting hardware included, Built-in QD Mounts with Internal Stops

$249.99
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FU Custom 16" Upper ,1:7, Carbine Gas Stystem, MFT M44S handgaurd, BF18 Comp FG

Custom 16" Completed Upper With Carbine Length Gas System, Mission First Tactical M44S Handguard, and BF18 Compensator

$499.99
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Blitzkrieg Tactical M-LOK Micro Hand Stop

This micro hand stop is great people who want consistent hand placement with their support hand while maintaining a low-profile accessory on their rifle. 

$24.99
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JL Billet V.P.R. Muzzle Brake AR15

JL Billet's V.P.R. muzzle brakes are designed with varying degree port angles to redirect the gases out and up to reduce felt recoil as well as reduce the flash signature.

$159.95
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Magpul M-LOK Hand Stop Kit

Magpul Industries, M-LOK Hand Stop Kit, Includes one M-LOK Hand Stop, one M-LOK Index Panel, and one M-LOK Rail Cover Type 2, Olive Drab Green

$24.95
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KRISS USA, Inc, Vector Angled Grip, picatiny

The KRISS Angled Grip adds a gentle contour to the bottom of your Vector's receiver.

$17.49
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.308 AR Gas Ring 3 Pack

Gas rings for the Bolt On an LR308 Rifle

$4.99
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UTG Flash Hider AR-15 1/2x28"

UTG A2 Birdcage Style Flash Hider

$9.99
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MFT Front Back Up Sight

Back Up Front Sight In Case Your Optic Fails

$39.99
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Radian Weapons, Raptor-SL Ambidextrous Charging Handle, Slim Line, 5.56MM, Blk

Radian Weapons, Raptor-SL Ambidextrous Charging Handle, Slim Line, 5.56MM, Black Finish

$104.95
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POF USA Dictator .750 Adjustable Gas Block

With the addition of the Dictator adjustable gas block, you can now control the rate of fire, gas pressure, and the reliability of your rifle. Choose one of 9 gas positions to dictate the gas pressure and cyclic rate.

$163.00
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Vism M-LOK Hand Stop Grip

Ergonomic shape, suitable for many different gripping techniques.

$15.99
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Riflespeed Gas Controls .750" RS7521

The revolutionary RIFLESPEED Gas Control System makes controlling your rifle’s gas flow reliable, repeatable, and foolproof. Need more gas? Turn it up. Need less gas? Turn it down.

$229.99
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FU Custom 16" Upper, Magpul Black MOE M-LOK

Precision machined from forged 7075-T6 forgings from one of the top foundries in the country these are a premium upper.

$599.99 $449.99
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Blitzkrieg Blitz-I-Can Model 2 Black Nitride

Blitzkrieg Tactical Blitzkrieg Blitz-I-Can Comp Model 2 Black Nitride

$44.95
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Phase 5 Lo-Pro Slope Nose (LPSN) Free Float Quad Rail

Phase 5 Lo-Pro Slope Nose (LPSN) Free Float Quad Rail

$110.00
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MFT Standard Handguard Picatinny Rail Mount 2.2" FG

Picatinny Rail Mount for Mounting On Vent Holes On Conventional AR Handguards

$9.99
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