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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

ERGO Surestop Handstop Picatinny

Ergo Grip, Surestop, Tactical Rail Handstop, Black

$14.99
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Accu-Tac LR-10 G2 BiPod (7" to 12") Black

Made in the USA

$340.00
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Blitzkrieg Thread Protector Black 5/8x24 LR308

Made in the USA

$8.00
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Blitzkrieg Thread Protector Black 1/2x28 AR15

Made in the USA

$8.00
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LR308 Crush Washer

Crush Washer For AR-10 308 Rifles

$5.00
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Magpul MBUS Sight Rear

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight.

$57.95
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Timber Creek M-LOK Picatinny Rail

This rail section is compatible with any M-LOK™ system and creates a space for mounting accessories. CNC machined out of aircraft grade billet aluminum.

$49.99
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Phase 5 LITTLEBOY Hex Muzzle Brake

Introducing the littleBOY Hex Brake; a younger, compact version of the original FATman Hex Brake, which was also created to solve issues faced by many competition shooters and precision rifle builders.

$110.00
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Phase 5 FATman Hex Muzzle Brake

The FATman Hex Brake was created to solve issues faced by many competition shooters and precision rifle builders. The 2 large (FAT) ventilated baffle sections and chambers create the compensation needed to reduce the overall recoil felt by the shooter.

$120.00
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Timber Creek Keymod Picatinny Rail

These rail sections are compatible with any KeyMod™ system and create a space for mounting accessories. CNC machined out of aircraft grade billet aluminum.

$25.00
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Magpul MVG MOE Vertical Grip

Made in the USA

$19.95
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ARMS #71 L-F Front Sight

Proudly Made in the USA

$42.00
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Magpul MBUS Sight Front

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight.

$39.95
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House AR15 Slick-Side Billet Upper Black Anodized

This upper is a Billet AR-15 slick-side upper made out of Solid Aluminum. This upper does not have a forward assist or dust cover door nor does it have the capability of accepting these parts.

$189.99
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House AR15 Stripped Billet Upper Black Anodized

Precision machined from a solid block of Billet Aluminum, these blanks are from one of the top foundries in the country and are a premium stripped upper receiver.

$124.99
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