FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC |

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FN America + Gun Parts FNH USA Gun Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + AR 15 Parts FNH USA AR15 Parts AR15 Upper Receivers FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + Rifle Parts FNH USA Rifle Parts + AR 15 Parts FNH USA AR15 Parts AR15 Upper Receivers FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + AR 15 Parts FNH USA AR15 Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + Rifle Parts FNH USA Rifle Parts + AR 15 Parts FNH USA AR15 Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + Rifle Parts FNH USA Rifle Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC

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Image of FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC, RJ3631807

FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC, RJ3631807

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Caliber:: 5.56x45mm NATO
Barrel Twist Rate:: 1-7 RH

Code: 57D-UFH-E426C7AC-RJ3631807

MPN: 36318-07

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Product Info for FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC

Own a piece of firearm history from the makers of the world’s most battle-proven firearms. The FN 15® Military Collector Series M4 upper receiver assembly is an authentic reproduction of the original made to FN’s and the U.S. military’s exacting specifications. A 14.7-in. chrome-lined barrel is button-broached with a 1:7 twist rate the welded compensator brings the barrel length to 16-in. Cut with a 5.56x45mm NATO chamber to mate with the Carpenter 158 steel bolt each MIL-SPEC bolt carrier is high-pressure and magnetic particle tested for enduring reliability. CALIBER: 5.56x45mm WEIGHT: 4.98 Lbs. BARREL LENGTH: 16" OPERATION: DIRECT IMPINGEMENT CARBINE-LENGTH GAS SYSTEM TWIST RATE: 1:7 R SIGHTS: A2-style front adjustable rear sight

Features of FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel:

Authentic reproduction of the original made to FN’s and the U.S. military’s exacting specifications
14.7-in. chrome-lined barrel button-broached with a 1:7 twist rate
Welded compensator brings the barrel length to 16-in
Cut with a 5.56x45mm NATO chamber to mate with the Carpenter 158 steel bolt
Each MIL-SPEC bolt carrier is high-pressure and magnetic particle tested for enduring reliability
A2-style front adjustable rear sight

Package Contents:

FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel

Ammunition

1–40 / 40

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 21%)

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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 14%)

See all 2 models

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 54%)

$0.61 - $0.82/Round

See all 7 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 52%)

$0.66 - $0.78/Round

See all 6 models

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 28%)

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 21%)

$0.53 - $0.58/Round

See all 2 models

Federal American Eagle 5.56x45mm NATO 55 Grain Full Metal Jacket Boat Tail Brass Cased Rifle Ammunition

Federal American Eagle 5.56x45mm NATO 55 Grain Full Metal Jacket Boat Tail Brass Cased Rifle Ammunition

As Low As (Save Up to 22%)

$0.67 - $0.78/Round

See all 2 models

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: $43.99 (Save 10%)

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 24%)

$0.65 - $0.69/Round

See all 2 models

Hornady Frontier 5.56x45mm NATO 55 Grain Brass Cased Full Metal Jacket Rifle Ammo, 250 Rounds, FR604

Hornady Frontier 5.56x45mm NATO 55 Grain Brass Cased Full Metal Jacket Rifle Ammo, 250 Rounds, FR604

List: $203.99 (Save 26%)

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

As Low As (Save Up to 18%)

See all 2 models

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 14%)

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 13%)

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: $42.99 (Save 19%)

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 10%)

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 18%)

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 12%)

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 36%)

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: $42.99 (Save 19%)

Barnes Precision 5.56x45mm NATO 85 grain Burner Open Tip Match Boat Tail Centerfire Rifle Ammo, 20 Rounds, *30848

Barnes Precision 5.56x45mm NATO 85 grain Burner Open Tip Match Boat Tail Centerfire Rifle Ammo, 20 Rounds, *30848

List: $42.99 (Save 22%)

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%)

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 40%)

PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR

PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR

List: $866.49 (Save $59.00)

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 $54.00)

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 $1.50)

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: $140.00 (Save $9.01)

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 34%)

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 22%)

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 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 17%)

See all 2 models

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 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 17%)

$0.65 - $0.67/Round

See all 3 models

Atomic Ammunition Cycling Defense AD77 5.56x45mm NATO 77grain Boat Tail Hollow Point Brass Cased Rifle Ammunition

Atomic Ammunition Cycling Defense AD77 5.56x45mm NATO 77grain Boat Tail Hollow Point Brass Cased Rifle Ammunition

As Low As (Save Up to 10%)

See all 2 models

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%)

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)

Magtech 5.56x45mm Ball M193 - 556ACS

Magtech 5.56x45mm Ball M193 - 556ACS

List: $732.00 (Save $65.01)

PMC Ammunition X-Tac Rifle Ammo 5.56 NATO 62 gr Green Tip 1000/ct, 5.56 M855 Case

PMC Ammunition X-Tac Rifle Ammo 5.56 NATO 62 gr Green Tip 1000/ct, 5.56 M855 Case

List: $739.99 (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%)

Global Ordnance 5.56x45mm NATO, 55 grain, Full Metal Jacket, 20 Rounds Rifle Ammo, GO850003223346

Global Ordnance 5.56x45mm NATO, 55 grain, Full Metal Jacket, 20 Rounds Rifle Ammo, GO850003223346

List: $24.62 (Save 39%)

Ammo Boxes

1–6 / 6

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 51%)

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: $6.99 (Save 50%)

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%)

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: $6.99 (Save 50%)

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%)

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 FN America SC Rear Stock FN SCAR 16S/17S/20S Rifle Stock

FN America SC Rear Stock FN SCAR 16S/17S/20S Rifle Stock List: $699.00 (Save 11%) $625.00

Image of FN America SC Rear Stock FN SCAR 16S/17S/20S Rifle Stock

FN America SC Rear Stock FN SCAR 16S/17S/20S Rifle Stock List: $699.00 (Save 11%) $625.00

Image of FN 509 Midsize 9mm Compensated Pistol Barrel Kit

2 models FN 509 Midsize 9mm Compensated Pistol Barrel Kit (1) List: $349.00 (Save Up to 16%) $329.00

Image of FN 509 Compact 9mm Compensated Pistol Barrel Kit

2 models FN 509 Compact 9mm Compensated Pistol Barrel Kit List: $349.00 (Save $20.00) $329.00

Image of FN America 510 Compensator Kit

2 models FN America 510 Compensator Kit List: $415.99 (Save Up to 17%) $349.00

Image of FN America 545 Compensator Kit

2 models FN America 545 Compensator Kit (1) List: $379.00 (Save Up to 17%) $349.00

Image of FN America Ar15 Barrel, 16inch Hf M4 5.56 Carbine

FN America Ar15 Barrel, 16inch Hf M4 5.56 Carbine $349.00

Image of FN America Ar15 Barrel, 16inch Hf M4 5.56 Carbine

FN America Ar15 Barrel, 16inch Hf M4 5.56 Carbine $349.00

Image of FN America Ar15 Barrel, 16inch Hf M4 5.56 Carbine

FN America Ar15 Barrel, 16inch Hf M4 5.56 Carbine $349.00

Image of FN America Ar15 Midlength Barrel

FN America Ar15 Midlength Barrel List: $299.00 (Save $20.00) $279.00

Image of FN America Ar15 Midlength Barrel

FN America Ar15 Midlength Barrel List: $299.00 (Save $20.00) $279.00

Image of FN America Ar15 Midlength Barrel

FN America Ar15 Midlength Barrel List: $299.00 (Save $20.00) $279.00

Image of FN America Ar15 Barrel, 14.7inch Bb M4 5.56 Carbine

FN America Ar15 Barrel, 14.7inch Bb M4 5.56 Carbine List: $299.00 (Save $20.00) $279.00

Image of FN America Ar15 Barrel, 14.7inch Bb M4 5.56 Carbine

FN America Ar15 Barrel, 14.7inch Bb M4 5.56 Carbine List: $299.00 (Save $20.00) $279.00

Image of FN America Ar15 Barrel, 14.7inch Bb M4 5.56 Carbine

FN America Ar15 Barrel, 14.7inch Bb M4 5.56 Carbine List: $299.00 (Save $20.00) $279.00

Image of FN America AR-15 Hammer Forged 16 Inch Barrel Mid- Length Gas System 5.56mm NATO 36422

FN America AR-15 Hammer Forged 16 Inch Barrel Mid- Length Gas System 5.56mm NATO 36422 (1) List: $399.00 (Save 13%) $349.00

Image of FN America AR-15 Hammer Forged 16 Inch Barrel Mid- Length Gas System 5.56mm NATO 36422

FN America AR-15 Hammer Forged 16 Inch Barrel Mid- Length Gas System 5.56mm NATO 36422 (1) List: $399.00 (Save 13%) $349.00

Image of FN America AR-15 Hammer Forged 16 Inch Barrel Mid- Length Gas System 5.56mm NATO 36422

FN America AR-15 Hammer Forged 16 Inch Barrel Mid- Length Gas System 5.56mm NATO 36422 (1) List: $399.00 (Save 13%) $349.00

Image of FN America Barrel Ar-15 Button Rifled 16" 1:7 Carbine Gas Govt.

FN America Barrel Ar-15 Button Rifled 16" 1:7 Carbine Gas Govt. List: $299.00 (Save $20.00) $279.00

Image of FN America Barrel Ar-15 Button Rifled 16" 1:7 Carbine Gas Govt.

FN America Barrel Ar-15 Button Rifled 16" 1:7 Carbine Gas Govt. List: $299.00 (Save $20.00) $279.00

Image of FN America Barrel Ar-15 Button Rifled 16" 1:7 Carbine Gas Govt.

FN America Barrel Ar-15 Button Rifled 16" 1:7 Carbine Gas Govt. List: $299.00 (Save $20.00) $279.00

Image of FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine

FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine (2) List: $299.00 $279.00

Image of FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine

FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine (2) List: $299.00 $279.00

Image of FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine

FN America Ar15 Barrel 10.5inch Bb M16 5.56 Carbine (2) List: $299.00 $279.00

FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC Unavailable & Discontinued Models

List of Unorderable Models

FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC, RJ3631807 , MPN: 36318-07 , Code: 57D-UFH-E426C7AC-RJ3631807

Compare (0)

FN America + Gun Parts FNH USA Gun Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + AR 15 Parts FNH USA AR15 Parts AR15 Upper Receivers FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + Rifle Parts FNH USA Rifle Parts + AR 15 Parts FNH USA AR15 Parts AR15 Upper Receivers FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + AR 15 Parts FNH USA AR15 Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + Rifle Parts FNH USA Rifle Parts + AR 15 Parts FNH USA AR15 Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC FN America + Gun Parts FNH USA Gun Parts + Rifle Parts FNH USA Rifle Parts FN America FN USA FN 15 Military Collector Series M4 Complete Upper Receiver Assembly 5.56mm 16 Barrel E426C7AC

Last updated 2026-08-18 UTC.