Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel |

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Adams Arms + Gun Parts Adams Arms Gun Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + AR 15 Parts Adams Arms AR15 Parts AR15 Upper Receivers Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + Rifle Parts Adams Arms Rifle Parts + AR 15 Parts Adams Arms AR15 Parts AR15 Upper Receivers Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + AR 15 Parts Adams Arms AR15 Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + Rifle Parts Adams Arms Rifle Parts + AR 15 Parts Adams Arms AR15 Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + Rifle Parts Adams Arms Rifle Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel

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Image of Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, Black, 556 Barrel FGAA-01242

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, Black, 556 Barrel FGAA-01242

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03:16

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, Black, 556 Barrel FGAA-01242

opplanet adams arms piston system video

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Adams Arms Piston System

opplanet adams arms piston vs di new video

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Adams Arms Piston VS DI

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, Black, 556 Barrel FGAA-01242

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Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, Black, 556 Barrel FGAA-01242

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Government Restriction

By adding to cart, I understand and agree to the Domestic Restricted Product Policy and certify that I will comply with applicable federal, state and local laws and regulations.

Product Videos

Adams Arms Piston System

Adams Arms Piston System 01:27

Adams Arms Piston VS DI

Adams Arms Piston VS DI 03:16

Questions & Answers

what is the total length of the barrel with pinned muzzle? Expert Answer

With the pinned muzzle device overall barrel length is 16".

by Jonathan D., Gear Expert, June 5, 2018

View All Q&A You Have a Question? Ask!

Product Discontinued by Manufacturer

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel has been discontinued by Adams Arms and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

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ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

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Product Info for Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel

The Adams Arms P2 model is the tactical, battle-ready model in the P-Series lineup. The P2 model includes an ergonomic free float rail that covers the all new P-Series Micro Block piston system. This upper features a Manimal flash hider and ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for any type of shooter.

Package Contents:

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel

Ammunition

1–39 / 39

PMC Ammunition X-TAC, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 20, 556X

PMC Ammunition X-TAC, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 20, 556X

List: $15.99 (Save 25%)

PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition

PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition

As Low As (Save Up to 17%)

See all 2 models

Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition

Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition

As Low As (Save Up to 29%)

See all 2 models

PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556

PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556

List: $22.49 (Save 29%)

Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition

Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition

As Low As (Save Up to 19%)

$0.54 - $0.58/Round

See all 2 models

Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition

Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition

As Low As (Save Up to 48%)

$0.66 - $0.75/Round

See all 7 models

PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR

PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR

List: $866.49 (Save 18%)

Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition

Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition

As Low As (Save Up to 50%)

$0.70 - $0.74/Round

See all 7 models

Prvi Partizan RangeMaster, 5.56 NATO, 55 Grain, Full Metal Jacket, 20 Round Box PPRM5561

Prvi Partizan RangeMaster, 5.56 NATO, 55 Grain, Full Metal Jacket, 20 Round Box PPRM5561

List: $23.99 (Save 48%)

AmmoDyn 5.56x45mm NATO 55 grain Full Metal Jacket Brass Cased Rifle Ammo, 30 Rounds, PM-55655-30

AmmoDyn 5.56x45mm NATO 55 grain Full Metal Jacket Brass Cased Rifle Ammo, 30 Rounds, PM-55655-30

List: $26.95 (Save 16%)

Fort Scott Munitions, 5.56x45mm NATO, 55 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 556-055-SCV

Fort Scott Munitions, 5.56x45mm NATO, 55 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 556-055-SCV

List: $28.32 (Save $2.43)

Federal American Eagle 5.56x45mm NATO 55 Grain Full Metal Jacket Boat Tail Brass Cased Rifle Ammo, 100 Rounds, AE193C

Federal American Eagle 5.56x45mm NATO 55 Grain Full Metal Jacket Boat Tail Brass Cased Rifle Ammo, 100 Rounds, AE193C

List: $83.99 (Save $6.00)

Fort Scott Munitions .5.56 NATO 40 Grain CNC Machined Copper Brass Rifle Ammo, 20 Rounds, 556-040-SCV2

Fort Scott Munitions .5.56 NATO 40 Grain CNC Machined Copper Brass Rifle Ammo, 20 Rounds, 556-040-SCV2

List: $28.06 (Save 10%)

Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 70 Grain, 20 - Rounds, *31191

Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 70 Grain, 20 - Rounds, *31191

List: $40.99 (Save 10%)

Hornady Superfomance 5.56 Nato 55 Grain Copper Solid CX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 812544

Hornady Superfomance 5.56 Nato 55 Grain Copper Solid CX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 812544

List: $46.61 (Save 30%)

Fort Scott Munitions 5.56 NATO Copper 62 Grain Centerfire Rifle Ammo, 20 Rounds, 556-062-SCV1

Fort Scott Munitions 5.56 NATO Copper 62 Grain Centerfire Rifle Ammo, 20 Rounds, 556-062-SCV1

List: $47.99 (Save 36%)

Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263

Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263

List: $24.99 (Save 14%)

Barnes Precision MatchRifle Cartridges, 5.56x45mm NATO, Match Burner Open Tip Match Boat Tail, 69 Grain, 20 - Rounds, *30846

Barnes Precision MatchRifle Cartridges, 5.56x45mm NATO, Match Burner Open Tip Match Boat Tail, 69 Grain, 20 - Rounds, *30846

List: $69.33 (Save 38%)

Hornady Superformance 5.56x45mm NATO 75 grain Boat-Tail Hollow Point Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81264

Hornady Superformance 5.56x45mm NATO 75 grain Boat-Tail Hollow Point Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81264

List: $41.40 (Save 30%)

Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition

Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition

As Low As (Save Up to 19%)

See all 2 models

Veteran Ammo Defense 5.56x45mm NATO 62 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-556-24

Veteran Ammo Defense 5.56x45mm NATO 62 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-556-24

List: $49.99 (Save 23%)

Hornady Frontier 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition

Hornady Frontier 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition

As Low As (Save Up to 21%)

$0.62 - $0.65/Round

See all 3 models

Hornady Frontier 5.56x45mm NATO 68 grain Boat-Tail Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR310

Hornady Frontier 5.56x45mm NATO 68 grain Boat-Tail Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR310

List: $19.60 (Save 18%)

Veteran Ammo Defense 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Pistol Ammo, 20 Rounds, HMBX-556-25

Veteran Ammo Defense 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Pistol Ammo, 20 Rounds, HMBX-556-25

List: $49.99 (Save 22%)

Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition

Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition

As Low As (Save Up to 22%)

$0.67 - $0.68/Round

See all 2 models

Hornady Frontier 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Rifle Ammunition

Hornady Frontier 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Rifle Ammunition

List: $17.60 (Save 21%)

See all 1 models

Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 62 Grain, 20 - Rounds, *31190

Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 62 Grain, 20 - Rounds, *31190

List: $39.99 (Save $1.00)

Magtech 5.56x45mm Ball M193 - 556ACS

Magtech 5.56x45mm Ball M193 - 556ACS

List: $732.00 (Save $65.01)

Fiocchi Range Dynamics 556 NATO 55 Grain FMJ Brass Rifle Ammo, 50 Round, 556M193L

Fiocchi Range Dynamics 556 NATO 55 Grain FMJ Brass Rifle Ammo, 50 Round, 556M193L

List: $40.99 (Save 10%)

PMC 556M55BP Battle Pack 5.56 NATO 62 Gr Light Armor Piercing LAP

PMC 556M55BP Battle Pack 5.56 NATO 62 Gr Light Armor Piercing LAP

List: $131.99 (Save 30%)

Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip 50-20RD Box 1000 rds tot, WM855K Case

Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip 50-20RD Box 1000 rds tot, WM855K Case

List: $869.99 (Save $65.50)

First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 1000 Rounds, 50009

First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 1000 Rounds, 50009

List: $612.29 (Save $39.80)

PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo, Metal Box, 840 Rounds, 1102741

PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo, Metal Box, 840 Rounds, 1102741

List: $632.49 (Save $49.50)

Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack

Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack

List: $629.99 (Save 10%)

Hornady American Gunner Rifle Ammo 5.56 NATO 55 gr HP 3240 fps 247/ct, 80279

Hornady American Gunner Rifle Ammo 5.56 NATO 55 gr HP 3240 fps 247/ct, 80279

List: $263.99 (Save 20%)

Aguila Ammunition 5.56 NATO 55 Grain Full Metal Jacket Boat Tail, Brass Case, Rifle Ammo, 300 Rounds, 1E556126

Aguila Ammunition 5.56 NATO 55 Grain Full Metal Jacket Boat Tail, Brass Case, Rifle Ammo, 300 Rounds, 1E556126

First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded

First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded

List: $19.99 (Save 33%)

PMC 556XBP Battle Pack 5.56 NATO 55 Gr Full Metal Jacket Boat Tail FMJBT

PMC 556XBP Battle Pack 5.56 NATO 55 Gr Full Metal Jacket Boat Tail FMJBT

List: $155.00 (Save 13%)

Winchester USA 5.56x45mm NATO 55 Grain Full Metal Jacket Centerfire Rifle Ammo, 125 Rounds, USA193125

Winchester USA 5.56x45mm NATO 55 Grain Full Metal Jacket Centerfire Rifle Ammo, 125 Rounds, USA193125

List: $121.49 (Save 32%)

Ammo Boxes

1–6 / 6

Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom

Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom

List: $5.39 (Save 41%)

Berrys 79462 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Clear Lid W/Black Bottom

Berrys 79462 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Clear Lid W/Black Bottom

List: $6.49 (Save 54%)

Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom

Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom

List: $6.49 (Save 54%)

Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom

Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom

List: $6.99 (Save 21%)

Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom

Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom

List: $6.99 (Save 21%)

MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS

MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS

Image of Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2

2 models Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2 (228) As Low As (Save Up to 10%) $111.79 Blazin' Deal

Image of Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2

2 models Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2 (228) As Low As (Save Up to 10%) $111.79 Blazin' Deal

Image of Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2

2 models Geissele Super 42 Braided Wire Buffer Spring And Buffer Combo, H2 (228) As Low As (Save Up to 10%) $111.79 Blazin' Deal

Image of Radian Weapons Glock 43X/48 Anchor and Pistol Magwell

3 models Radian Weapons Glock 43X/48 Anchor and Pistol Magwell (38) As Low As (Save Up to 33%) $109.99 Best Rated

Image of DFCO Kung Fu Grip Plug

DFCO Kung Fu Grip Plug (20) List: $12.00 (Save 10%) $10.80 12% Bonus Bucks

Image of DFCO Kung Fu Grip Plug

DFCO Kung Fu Grip Plug (20) List: $12.00 (Save 10%) $10.80 12% Bonus Bucks

Image of DFCO Kung Fu Grip Plug

DFCO Kung Fu Grip Plug (20) List: $12.00 (Save 10%) $10.80 12% Bonus Bucks

Image of TRYBE Defense Standard Handguard Barrel Nut

TRYBE Defense Standard Handguard Barrel Nut (22) List: $18.99 (Save 98%) $0.44 Blazin' Deal

Image of TRYBE Defense Standard Handguard Barrel Nut

TRYBE Defense Standard Handguard Barrel Nut (22) List: $18.99 (Save 98%) $0.44 Blazin' Deal

Image of TRYBE Defense Standard Handguard Barrel Nut

TRYBE Defense Standard Handguard Barrel Nut (22) List: $18.99 (Save 98%) $0.44 Blazin' Deal

Image of SB Tactical SBA5 5 Position Adjustable Rifle Brace

2 models SB Tactical SBA5 5 Position Adjustable Rifle Brace (167) List: $124.99 (Save 34%) $81.99 Blazin' Deal

Image of SB Tactical SBA5 5 Position Adjustable Rifle Brace

2 models SB Tactical SBA5 5 Position Adjustable Rifle Brace (167) List: $124.99 (Save 34%) $81.99 Blazin' Deal

Image of DFCO Kung Fu Grip, Black

8 models DFCO Kung Fu Grip, Black (116) As Low As (Save Up to 15%) $18.00 12% Bonus Bucks

Image of DFCO Kung Fu Grip, Black

8 models DFCO Kung Fu Grip, Black (116) As Low As (Save Up to 15%) $18.00 12% Bonus Bucks

Image of DFCO Kung Fu Grip, Black

8 models DFCO Kung Fu Grip, Black (116) As Low As (Save Up to 15%) $18.00 12% Bonus Bucks

Image of Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle

4 models Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle (541) List: $54.95 (Save $5.00) $49.95 Best Rated

Image of Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle

4 models Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle (541) List: $54.95 (Save $5.00) $49.95 Best Rated

Image of Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle

4 models Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle (541) List: $54.95 (Save $5.00) $49.95 Best Rated

Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer

Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (49) List: $109.95 (Save $10.00) $99.95 Best Rated

Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer

Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (49) List: $109.95 (Save $10.00) $99.95 Best Rated

Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer

Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (49) List: $109.95 (Save $10.00) $99.95 Best Rated

Image of Superlative Arms Adjustable Bleed Off Gas Block

16 models Superlative Arms Adjustable Bleed Off Gas Block (283) List: $99.99 (Save 10%) $89.99 Best Rated

Image of Superlative Arms Adjustable Bleed Off Gas Block

16 models Superlative Arms Adjustable Bleed Off Gas Block (283) List: $99.99 (Save 10%) $89.99 Best Rated

Image of Superlative Arms Adjustable Bleed Off Gas Block

16 models Superlative Arms Adjustable Bleed Off Gas Block (283) List: $99.99 (Save 10%) $89.99 Best Rated

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Unavailable & Discontinued Models

List of Unorderable Models

Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, Black, 556 Barrel, FGAA-01242 , MPN: FGAA-01242 , UPC: 812151022233 , Code: ADA-URC-P2U14P-FGAA-01242
Adams Arms P2 Upper 5.56 Adjustable Block - 14.5in Pinned Mid Length Gas, Black, 556 Barrel, FGAA-01302 , MPN: FGAA-01302 , UPC: 812151022813 , Code: ADA-URC-P2U14P-FGAA-01302

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Adams Arms + Gun Parts Adams Arms Gun Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + AR 15 Parts Adams Arms AR15 Parts AR15 Upper Receivers Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + Rifle Parts Adams Arms Rifle Parts + AR 15 Parts Adams Arms AR15 Parts AR15 Upper Receivers Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + AR 15 Parts Adams Arms AR15 Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + Rifle Parts Adams Arms Rifle Parts + AR 15 Parts Adams Arms AR15 Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel Adams Arms + Gun Parts Adams Arms Gun Parts + Rifle Parts Adams Arms Rifle Parts Adams Arms P2 Upper 5.56 - 14.5in Pinned Mid Length Gas, 556 Barrel