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Alpine will be closing at 3pm on July 4th and will be closed all day on July 9th, 2025 for maintenance.
5482 Shelby Road, Fort Worth, TX 76140 (map) - 817-478-6613
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5.56 NATO

5.56 NATO

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Current Top Sellers

B&P 12B14P8 Competition Flyer 12 Gauge 2.75" 1 1/4 oz 8 Shot 10 Per Box — B&P AMMUNITION

B&P 12B14P8 Competition Flyer 12 Gauge 2.75" 1 1/4 oz 8 Shot 10 Per Box

$11.06 $9.32

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Ppu Blank Ammo, Ppu Ppb739 7.62x39 Blank M68 15/96 — PPU

Ppu Blank Ammo, Ppu Ppb739 7.62x39 Blank M68 15/96

$12.49 $10.53

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Processed 223 Brass for reloading - 500 pieces — Processed 223 Brass for reloading - 500 pieces

$80.00 $49.99

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ProMag SCYA1 MAG SCCY CPX1/CPX2 9MM 15 rounds STEEL — ProMag

ProMag SCYA1 MAG SCCY CPX1/CPX2 9MM 15 rounds STEEL

$25.99 $18.53

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Ets Group Glock Compatible, Ets Glk-43x-19 Glock 43x 19rd 9mm Mag — ETS Group

Ets Group Glock Compatible, Ets Glk-43x-19 Glock 43x 19rd 9mm Mag

$24.35 $20.31

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Fiocchi B&p Heavy, B&p 12b18d6 Dove & Quail 12 Ga. 1 1/8 Oz #6 — Fiocchi

Fiocchi B&p Heavy, B&p 12b18d6 Dove & Quail 12 Ga. 1 1/8 Oz #6

$12.42 $10.47

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ProMag AKA5 AK-74 223 Remington/5.56 NATO 30 Round Polymer Gray Finish — ProMag

ProMag AKA5 AK-74 223 Remington/5.56 NATO 30 Round Polymer Gray Finish

$17.99 $12.78

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Promag Mossberg, Pro Mosa1 Mag Mossberg 715t 22lr 25rd — ProMag

Promag Mossberg, Pro Mosa1 Mag Mossberg 715t 22lr 25rd

$21.73 $18.31

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LBE AR125RBK READY BUILD KIT 12.5 CHF BBL — LBE Unlimited

LBE AR125RBK READY BUILD KIT 12.5 CHF BBL

$618.80 $495.04

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LBE AR75RBK READY BUILD KIT 7.5 CHF BBL — LBE Unlimited

LBE AR75RBK READY BUILD KIT 7.5 CHF BBL

$534.76 $427.81

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LBE AR137RBK READY BUILD KIT 13.7 CHF BBL — LBE Unlimited

LBE AR137RBK READY BUILD KIT 13.7 CHF BBL

$618.80 $495.04

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SOLGW L89 BS V2 5.56 13.7" HUX BLK — Sons of Liberty Gun Works

SOLGW L89 BS V2 5.56 13.7" HUX BLK

$1,375.00 $1,306.25

The L89BS (Broadsword) uppers include 7-sided L89 rails with Titanium barrel nuts and integral QD cups, BROADSWORD upper receivers, 4150CMV barrels, low profile gas blocks, and include the muzzle device. Bolt Carrier Groups and Charging Handles are NOT...

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SOLGW E INDIA KIT V2 5.56 13.7" BLK — Sons of Liberty Gun Works

SOLGW E INDIA KIT V2 5.56 13.7" BLK

$500.00 $475.00

The East India Starter Kit is a building block for any build you wish to do. Properly assembled with a USGI barrel nut, this is a great way to finish assembling your own upper without having to know how to install a barrel and gas block.Features :No...

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SOLGW L89 BS V2 5.56 13.7" NOX BLK — Sons of Liberty Gun Works

SOLGW L89 BS V2 5.56 13.7" NOX BLK

$1,375.00 $1,306.25

The L89BS (Broadsword) uppers include 7-sided L89 rails with Titanium barrel nuts and integral QD cups, BROADSWORD upper receivers, 4150CMV barrels, low profile gas blocks, and include the muzzle device. Bolt Carrier Groups and Charging Handles are NOT...

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SOLGW E INDIA KIT V2 5.56 16" BLK — Sons of Liberty Gun Works

SOLGW E INDIA KIT V2 5.56 16" BLK

$500.00 $475.00

The East India Starter Kit is a building block for any build you wish to do. Properly assembled with a USGI barrel nut, this is a great way to finish assembling your own upper without having to know how to install a barrel and gas block.Features :No...

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BAD 16 UPPR WRKHORSE 556AMBI GRAY — Battle Arms Development

BAD 16 UPPR WRKHORSE 556AMBI GRAY

$745.48 $709.98

The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...

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BAD 16 UPPR WRKHORSE 556 AMBI C GRAY — Battle Arms Development

BAD 16 UPPR WRKHORSE 556 AMBI C GRAY

$745.48 $709.98

The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...

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Faxon Firearms FX5500U Ion 5.56 NATO 16" 13" M-LOK Handguard — FAXON FIREARMS

Faxon Firearms FX5500U Ion 5.56 NATO 16" 13" M-LOK Handguard

$1,153.95 $1,011.08

The FX5500-U features Faxon's 14.5" Pencil Barrel with Integral Slim 3-Port Muzzle Brake which meets the NFA 16" minimum barrel length requirement, 13" Streamline Carbon Fiber Handguard, and Lightweight Bolt Carrier Group. Super light, easy shooting and...

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Fightlite Industries MCR556DFR 5.56x45mm NATO 16.25" 7075-T6 Aluminum MIL-STD 1913 Rail Handguard — FIGHTLITE INDUSTRIES

Fightlite Industries MCR556DFR 5.56x45mm NATO 16.25" 7075-T6 Aluminum MIL-STD 1913 Rail Handguard

$7,545.99 $6,599.99

The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward...

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Fightlite Industries Raptor Belt, Fightlite Rptr-001 Raptor Beltfed Upper 16.25 — FIGHTLITE INDUSTRIES

Fightlite Industries Raptor Belt, Fightlite Rptr-001 Raptor Beltfed Upper 16.25

$5,487.99 $4,799.99

Caliber: 5.56x45mm NATOBarrel Length: 16.50"Twist: 1:7"Receiver Description: Optic ReadyHandguards: M-LOK

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Fight Mcr Dual Fd Upr 556 Mlok 16.25 — FIGHTLITE INDUSTRIES

Fight Mcr Dual Fd Upr 556 Mlok 16.25

$6,859.99 $5,899.99

The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward...

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Solgw L89 V2 5.56 13.7" Nox Blk — Sons of Liberty Gun Works

Solgw L89 V2 5.56 13.7" Nox Blk

$1,000.00 $950.00

These L89 Upper Receiver Groups are built using SOLGW forged upper, V2 Button rifled barrels, their V2 4140 gas block, and offered in a variety of length and muzzle device options. BCH and Charging Handles are not included.Features :L89 Rails with...

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Ge Super Dty Mod1 5.56 13.9" Urg Ddc — Geissele Automatics

Ge Super Dty Mod1 5.56 13.9" Urg Ddc

$1,438.20

Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...

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Sons Of Liberty Gun Works L89, Solgw M4l89upper13.7556xl L89 Upper 556 13.7 V2 — Sons of Liberty Gun Works

Sons Of Liberty Gun Works L89, Solgw M4l89upper13.7556xl L89 Upper 556 13.7 V2

$1,000.00 $950.00

Caliber: 5.56 NATO

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Fight Mcr Dual Fd Upr 556 Pic 16.25 — FIGHTLITE INDUSTRIES

Fight Mcr Dual Fd Upr 556 Pic 16.25

$6,859.99 $5,899.99

The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward...

Compare

Add to Cart

Solgw L89 V2 5.56 13.7" Hux Blk — Sons of Liberty Gun Works

Solgw L89 V2 5.56 13.7" Hux Blk

$1,000.00 $950.00

These L89 Upper Receiver Groups are built using SOLGW forged upper, V2 Button rifled barrels, their V2 4140 gas block, and offered in a variety of length and muzzle device options. BCH and Charging Handles are not included.Features :L89 Rails with...

Compare

Add to Cart

Fight Raptor Upr 556 Mlok 16.25 — FIGHTLITE INDUSTRIES

Fight Raptor Upr 556 Mlok 16.25

$5,487.99 $4,799.99

The innovative RAPTOR belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward compatible to AR15/M16 models...

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Add to Cart

Ge Super Dty Mod1 5.56 14.5" Urg Blk — Geissele Automatics

Ge Super Dty Mod1 5.56 14.5" Urg Blk

$1,285.20

Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...

Compare

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Tacfire Pistol Kit, Tacfire Ss-pk556-lpk-10 556 10.5" Pst Kit W/lpk — TacFire

Tacfire Pistol Kit, Tacfire Ss-pk556-lpk-10 556 10.5" Pst Kit W/lpk

$387.17 $326.33

Model: Pistol KitMaterial: Steel

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Lead & Steel Llc ARC-14-URG-FDE All-Rounder Carbine Upper Receiver 5.56 14.5" — LEAD & STEEL LLC

Lead & Steel Llc ARC-14-URG-FDE All-Rounder Carbine Upper Receiver 5.56 14.5"

$781.72 $614.21

Caliber: 5.56

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Lead & Steel Llc ARC-13-URG-ODG All-Rounder Carbine Upper Receiver 5.56 13.9" — LEAD & STEEL LLC

Lead & Steel Llc ARC-13-URG-ODG All-Rounder Carbine Upper Receiver 5.56 13.9"

$781.72 $614.21

Caliber: 5.56

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Ge Super Dty Mod1 5.56 14.5" Urg Ddc — Geissele Automatics

Ge Super Dty Mod1 5.56 14.5" Urg Ddc

$1,438.20

Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...

Compare

Add to Cart

Ge Super Duty Mod1 5.56 16 Urg Ddc — Geissele Automatics

Ge Super Duty Mod1 5.56 16 Urg Ddc

$1,438.20

Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...

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Add to Cart

Lead & Steel Llc JAG-18-URG-GRY Just As Good 5.56mm 18" — LEAD & STEEL LLC

Lead & Steel Llc JAG-18-URG-GRY Just As Good 5.56mm 18"

$508.12 $429.99

Caliber: 5.56mmBarrel Length: 18"Twist: 1:8"

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Ge Super Duty Mod1 5.56 16 Urg Blk — Geissele Automatics

Ge Super Duty Mod1 5.56 16 Urg Blk

$1,285.20

Geissele Automatics Super Duty Mod1, Complete Upper Receiver, 556nato, 16" Barrel, 1:7 Twist, Huxwrx Flash Hider-qd 556, 15" Smr Mk16 M-lok Free Float Handguard, Geissele Airborn Charging Handle, Nanoweapon Reliability Enhanced Bolt Carrier Group, Fits...

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Luxus Arms (hm Defense) Monobloc, Hm Defense 16mbup556 16 Monobloc Rifle Upper — Luxus Arms

Luxus Arms (hm Defense) Monobloc, Hm Defense 16mbup556 16 Monobloc Rifle Upper

$861.31 $676.74

The monobloc upper features a hm barrel with an integral machined patented gas block, and a carbine gas system.It is also 4150 chromoly, match grade, tripled honed, and button rifled.Its handguard is free-floating and uses a picatinny rial, magpul m-lok,...

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Daniel Defense M4a1 Upper Urg 14.5"pb 556 Fde — Daniel Defense

Daniel Defense M4a1 Upper Urg 14.5"pb 556 Fde

$1,612.00 $1,499.00

The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. This two-piece, free-floating rail system allows...

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Rock River Arms BB0470 LAR-15M RRAGE 3G Complete Upper, 5.56x45mm NATO 16" — Rock River Arms

Rock River Arms BB0470 LAR-15M RRAGE 3G Complete Upper, 5.56x45mm NATO 16"

$540.00 $455.36

Caliber:5.56mm nato chamber for 5.56mm and.223 caliberupper receiver:extruded aluminum a4 with port door/no forward assistbarrel:16-inch chrome molymuzzle device:a2 flash hider / 1/2-28 threadgas system:car length, with low profile gas blockhandguard:rra...

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Gemtech Gvac, Gemtech 13833 Gvac Upper Receiver Group 556 16.1 — Gemtech

Gemtech Gvac, Gemtech 13833 Gvac Upper Receiver Group 556 16.1

$914.68 $718.67

The gvac system from gemtech.Significantly reduce the amount of gas blowback you'll experience wwhen shooting suppressed with its patented design.The re-imagined barrel profile, enhanced bolt carrier profile, enhanced bolt carrier group, and etm muzzle...

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CMMG Dissent MK4 5.56x45mm NATO 10.50" — CMMG

CMMG Dissent MK4 5.56x45mm NATO 10.50"

$1,404.37 $1,103.43

Its no secret that pistol stabilizing braces have been a target for scrutiny over the years, and those that enjoy building their own ar pistols have wondered what will come out of all the uncertainty.Dissent is cmmg's answer.Utilizing cmmg's patent...

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Solgw M4-exo3 13.7" 5.56 Urg — Sons of Liberty Gun Works

Solgw M4-exo3 13.7" 5.56 Urg

$850.00 $807.50

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate and...

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Solgw Patrol Sl 16" 5.56 Fsb Urg — Sons of Liberty Gun Works

Solgw Patrol Sl 16" 5.56 Fsb Urg

$700.00 $665.00

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate and...

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Tacfire Pistol Upper Assembly, Tacfire Bu-556-5 556 Pstl Upper 5" W/bcg — TacFire

Tacfire Pistol Upper Assembly, Tacfire Bu-556-5 556 Pstl Upper 5" W/bcg

$371.73 $313.31

Chambered in 5.56, this pistol upper is completely built and ready to be put on a lower.Includes a bolt carry group.Receiver Finish: Black AnodizedType: CompleteCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 5"Barrel Finish: Black...

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Tacfire Complete Upper Assembly, Tacfire Bu-556-16 556 Rfl Upper 16" W/bcg — TacFire

Tacfire Complete Upper Assembly, Tacfire Bu-556-16 556 Rfl Upper 16" W/bcg

$330.60 $278.65

Tacfire complete upper assembly 5.56x45mm nato 16" black nitride barrel black anodized receiver m-lok handguard for ar-platformReceiver Finish: Black AnodizedCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 16"Barrel Finish: Black...

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Tacfire Complete Upper Assembly, Tacfire Bu-556-10 556 Pstl Upper 10" W/bcg — TacFire

Tacfire Complete Upper Assembly, Tacfire Bu-556-10 556 Pstl Upper 10" W/bcg

$321.22 $270.74

Tacfire complete upper assembly 5.56x45mm nato 10" black nitride barrel black anodized receiver m-lok handguard for ar-platformReceiver Finish: Black AnodizedCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 10"Barrel Finish: Black...

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Tacfire Complete Upper Assembly, Tacfire Bu-556-7 556 Pstl Upper 7" W/bcg — TacFire

Tacfire Complete Upper Assembly, Tacfire Bu-556-7 556 Pstl Upper 7" W/bcg

$321.22 $270.74

Tacfire complete upper assembly 5.56x45mm nato 7" black nitride barrel black anodized receiver m-lok handguard for ar-platformReceiver Finish: Black AnodizedCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 7"Barrel Finish: Black...

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Aim Sports Complete Upper Assembly, Aimsports Ar5cub3 Complete Ar-15 Upper Ass 16 5.56 — Aim Sports

Aim Sports Complete Upper Assembly, Aimsports Ar5cub3 Complete Ar-15 Upper Ass 16 5.56

$388.43 $359.99

Aim sports ar5cub3 complete upper assembly 5.56x45mm nato 16" black nitride barrel 7075-t6 aluminum black hard coat anodized receiver 15" m-lok free-float handguard for ar-15Receiver Finish: Black Hard Coat AnodizedCaliber: 5.56x45mm NATOSights: None,...

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Spikes Complete Upper, Spike Stu5435-mls Upper Mid 5.56 16" — Spikes Tactical

Spikes Complete Upper, Spike Stu5435-mls Upper Mid 5.56 16"

$701.33 $630.00

The spike's tactical st-15 enhanced upper line-up is designed as a fully mil-spec compliant upper series for law enforcement.This same level of quality and performance is now available to everyone, all at a price range that is affordable to shooters of...

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