AR-15 Upper Parts

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Browse IslandFab's vast selection of AR-15 upper parts to build your upper from the ground up or to upgrade your AR-15 upper. With everything from bolt carrier groups, AR-15 charging handles, muzzle accessories, rails, and much more, you are sure to find what you need at IslandFab Armory.

Aero Precision, Breach Charging Handle, Ambidextrous, Black

Aero Precision, Breach Charging Handle, ..

Aero Precision, Breach Charging Handle, ..

Aero Precision

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Armaspec, Classic Charging Handle, Ambidextrous

Armaspec, Classic Charging Handle, Ambid..

Armaspec, Classic Charging Handle, Ambid..

Armaspec

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$54.99

B5 Systems, End Plate Sling Adapter, Black

B5 Systems, End Plate Sling Adapter, Bla..

B5 Systems, End Plate Sling Adapter, Bla..

B5 Systems

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$19.99

B5 Systems, Rail Covers, 4 Pack, Fits M-LOK Rails, Matte, Black

B5 Systems, Rail Covers, 4 Pack, Fits M-..

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B5 Systems, Rail Covers, 4 Pack, Fits M-..

B5 Systems

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$17.99

BCM, Buffer Hardware Kit, Mil-Spec Buffer Tube, Buffer, Tube, Spring, and Hardware, Black

BCM, Buffer Hardware Kit, Mil-Spec Buffe..

BCM, Buffer Hardware Kit, Mil-Spec Buffe..

Bravo Company

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$59.99

Black Rain Ordnance, AR-15 Low Profile G..

Black Rain Ordnance, AR-15 Low Profile G..

Black Rain Ordnance

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$36.99

DPMS, DP-15, .750 Adjustable Low Profile..

DPMS, DP-15, .750 Adjustable Low Profile..

DPMS

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$39.99

DPMS, DP-15, .750 Low Profile Gas Block,..

DPMS, DP-15, .750 Low Profile Gas Block,..

DPMS

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$19.99

DPMS, DP-15, AR-15 Stripped Upper Receiver (BLEM)

DPMS, DP-15, AR-15 Stripped Upper Receiv..

DPMS, DP-15, AR-15 Stripped Upper Receiv..

DPMS

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$59.99

DPMS, DP-15, OEM Charging Handle

DPMS, DP-15, OEM Charging Handle

DPMS, DP-15, OEM Charging Handle

DPMS

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$12.99

DPMS, DP-15, Pistol Buffer Tube Assembly

DPMS, DP-15, Pistol Buffer Tube Assembly

DPMS, DP-15, Pistol Buffer Tube Assembly

DPMS

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$29.99

DPMS, DR-15, AR-15 Buffer Retainer Assembly

DPMS, DR-15, AR-15 Buffer Retainer Assem..

DPMS, DR-15, AR-15 Buffer Retainer Assem..

DPMS

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$2.49

DPMS, DR-15, Buffer Tube Assembly

DPMS, DR-15, Buffer Tube Assembly

DPMS, DR-15, Buffer Tube Assembly

DPMS

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$29.99

DPMS, Gas Tube, Carbine Length, Nitride

DPMS, Gas Tube, Carbine Length, Nitride

DPMS, Gas Tube, Carbine Length, Nitride

DPMS

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$10.99

DPMS, Gas Tube, Mid Length, Nitride

DPMS, Gas Tube, Mid Length, Nitride

DPMS, Gas Tube, Mid Length, Nitride

DPMS

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DPMS, Gas Tube, Pistol Length, Nitride

DPMS, Gas Tube, Pistol Length, Nitride

DPMS, Gas Tube, Pistol Length, Nitride

DPMS

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$11.99

Fortis Manufacturing, Inc., Castle Nut and End Plate, Black, Anodized Finish

Fortis Manufacturing, Inc., Castle Nut a..

Fortis Manufacturing, Inc., Castle Nut a..

Fortis Manufacturing

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GEISSELE AIRBORNE CHRG HNDL 5.56 BLK

GEISSELE AIRBORNE CHRG HNDL 5.56 BLK

GEISSELE AIRBORNE CHRG HNDL 5.56 BLK

Geissele Automatics

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$100.89

GEISSELE AIRBORNE CHRG HNDL 5.56 DDC

GEISSELE AIRBORNE CHRG HNDL 5.56 DDC

GEISSELE AIRBORNE CHRG HNDL 5.56 DDC

Geissele Automatics

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$115.00

Geissele Automatics Super Gas Block .750 Steel Black Nitride for AR Platform

Geissele Automatics Super Gas Block .75..

Geissele Automatics Super Gas Block .75..

Geissele Automatics

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$76.86

Geissele Automatics 05313B Super AR-15 Ambidextrous Charging Handle

Geissele Automatics 05313B Super AR-15 A..

Geissele Automatics 05313B Super AR-15 A..

Geissele Automatics

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$94.11

Geissele Automatics 05313S Super AR-15 Desert Dirt Ambidextrous Charging Handle

Geissele Automatics 05313S Super AR-15 D..

Geissele Automatics 05313S Super AR-15 D..

Geissele Automatics

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$110.49

Geissele Automatics 05476B Super AR-10 Black Ambidextrous Charging Handle

Geissele Automatics 05476B Super AR-10 B..

Geissele Automatics 05476B Super AR-10 B..

Geissele Automatics

(0)

$134.51

Geissele Automatics 05476S Super AR-10 Desert Dirt Desert Dirt Ambidextrous Charging Handle

Geissele Automatics 05476S Super AR-10 ..

Geissele Automatics 05476S Super AR-10 ..

Geissele Automatics

(0)

$117.64

Geissele Automatics 05495 Super 42 Buffer Spring and Buffer Combo H1

Geissele Automatics 05495 Super 42 Buffe..

Geissele Automatics 05495 Super 42 Buffe..

Geissele Automatics

(0)

$69.16

GEISSELE USASOC ABN CHRGNG HNDL BLK

GEISSELE USASOC ABN CHRGNG HNDL BLK

GEISSELE USASOC ABN CHRGNG HNDL BLK

Geissele Automatics

(0)

$111.45

Rise Armament, Bolt Carrier Group, Black Nitride

Rise Armament, Bolt Carrier Group, Black..

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Rise Armament, Bolt Carrier Group, Black..

Rise Armament

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ROSCO Manufacturing - Melonite Gas Tube

ROSCO Manufacturing - Melonite Gas Tube

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ROSCO Manufacturing - Melonite Gas Tube

Rosco Manufacturing

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$22.00

Sons of Liberty Gun Works, Scalper Bolt Carrier Group, 223/5.56mm, Black Manganese Phosphate

Sons of Liberty Gun Works, Scalper Bolt ..

Sons of Liberty Gun Works, Scalper Bolt ..

Sons Of Liberty Gun Works

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$199.99

Spike's Tactical, .625 Micro Gas Block W/ Screws

Spike's Tactical, .625 Micro Gas Block W..

Spike's Tactical, .625 Micro Gas Block W..

Spike's Tactical

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$29.95

Strike Industries, Ultra Light Takedown Pins for AR15 - Black

Strike Industries, Ultra Light Takedown ..

Strike Industries, Ultra Light Takedown ..

Strike

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