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Upper Receiver Parts subcategories
Barrel
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Products [147]
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Colt® - M4 Upper Receiver Assembly - Cage Code
$180.00
Out of Stock.
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Q® - Cherry Bomb - 1/2-28
$80.00
Out of Stock.
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Q® - Cherry Bomb - 5/8-24
$80.00
Out of Stock.
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SLR Rifleworks® - GB7 Micro Gas Block - .750"
$43.00
Out of Stock.
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SLR Rifleworks® - GB6 Micro Gas Block - .625"
$43.00
Out of Stock.
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SLR Rifleworks® - GB8 Micro Gas Block - .875"
$48.00
Out of Stock.
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SLR Rifleworks® - GB9 Micro Gas Block - .936"
$48.00
In Stock.
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D.Wilson MFG - Tool Steel SR15/SR16 Barrel Nut for URX 2/3/3.1
$48.00
In Stock.
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Surefire® - 3-Prong Flash Hider - 1/2-28
$152.00
Out of Stock.
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Surefire® - 3-Prong Flash Hider - 5/8-24
$152.00
In Stock.
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Surefire® - Muzzle Brake - 1/2-28
$152.00
Out of Stock.
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Surefire® - Muzzle Brake - 5/8-24
$152.00
Out of Stock.
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Surefire® - WARCOMP Flash Hider - 1/2-28
$152.00
In Stock.
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Surefire® - WARCOMP Flash Hider - 5/8-24
$152.00
In Stock.
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Surefire® - WARCOMP Closed Tine Flash Hider - 1/2-28
$152.00
In Stock.
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Classified Defense - Gas Tube - Rifle Length
$18.00
In Stock.
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Classified Defense - Gas Tube - Pistol Length
$15.00
In Stock.
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Classified Defense - Gas Tube - Carbine Length
$15.00
In Stock.
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Classified Defense - Gas Tube - Mid Length
$15.00
In Stock.
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Classified Defense - M4 Upper Receiver - Ultimate
$110.00
In Stock.
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Classified Defense - Dust Cover Assembly - DEVGRU - 300 BLK
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - DEVGRU - 5.56
$25.00
In Stock.
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Dead Air® - KeyMount Muzzle Brake - 1/2-28
$89.00
In Stock.
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Dead Air® - KeyMount Muzzle Brake - 5/8-24
$89.00
In Stock.
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Dead Air® - KeyMount Micro Brake - 1/2-28
$89.00
In Stock.
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Dead Air® - KeyMount Micro Brake - 5/8-24
$89.00
In Stock.
Add To Cart
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Dead Air® - KeyMount Flash Hider - 1/2-28
$89.00
In Stock.
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Dead Air® - KeyMount Flash Hider - 5/8-24
$89.00
In Stock.
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Geissele® - 10" MK4 Federal - Black
$350.00
Out of Stock.
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Geissele® - 10" MK4 Federal - OD Green
$375.00
Out of Stock.
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Surefire® - Closed Tine Flash Hider - 1/2-28
$152.00
In Stock.
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Surefire® - 4-Prong Flash Hider - 1/2-28
$179.00
In Stock.
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Noveske® - NSR 9" Handguard - M-LOK
$265.00
Out of Stock.
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Geissele® - Airborne Charging Handle - Black
$105.00
Out of Stock.
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Geissele® - Airborne Charging Handle - DDC
$115.00
Out of Stock.
Add To Cart
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PRI® - M84 Gas Buster Charging Handle - Military Big Latch - Black
$90.00
Out of Stock.
Add To Cart
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PRI® - M84 Gas Buster Charging Handle - Military Big Latch - Flat Dark Earth
$90.00
Out of Stock.
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Classified Defense - Charging Handle - Mil-Spec - Duty
$20.00
In Stock.
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San Tan Tactical® - Ultra Grip Kit
$38.00
In Stock.
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Classified Defense - Gas Block - .750" - Nitride
$40.00
In Stock.
Add To Cart
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Classified Defense - Ultimate M16 Bolt Carrier Group - 5.56x45MM - C158 - DLC/Chrome
$160.00
In Stock.
Select Options
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Daniel Defense® - 11.5" - 5.56x45MM - Government Barrel - With Low Profile Gas Block
$424.00
Out of Stock.
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Daniel Defense® - 11.5" - 5.56x45MM - Government Barrel - Stripped
$352.00
Out of Stock.
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SOLGW® - NOX .300 KeyMount - 5/8-24
$109.00
Out of Stock.
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SOLGW® - NOX 5.56 KeyMount - 1/2-28
$109.00
Out of Stock.
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LANTAC® - CP-R360™ Cam Pin - AR15
$28.00
In Stock.
Add To Cart
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LANTAC® - CP-R360-H™ Cam Pin - AR10
$28.00
In Stock.
Add To Cart
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Classified Defense - M16 Bolt Carrier Group - 5.56x45MM - C158 - Phosphate/Chrome
$120.00
In Stock.
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Classified Defense - M16 Bolt Carrier Group - 5.56x45MM - C158 - Nitride
$110.00
In Stock.
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Classified Defense - 9MM Bolt Carrier Group - Nitride
$120.00
Out of Stock.
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Daniel Defense® - MK18 RIS II - FDE
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - MK18 RIS II - Black
$486.00
Out of Stock.
Add To Cart
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SOLGW® - NOX9 5.56 KeyMount - 1/2-28
$109.00
In Stock.
Add To Cart
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Classified Defense - Dust Cover Assembly - Discrete - .300 BLACKOUT
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - 5.56X45MM
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - .223 REMINGTON
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - .223 WYLDE
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - 7.62X39MM
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - 6.5 GRENDEL
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - .458 SOCOM
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - .50 BEOWULF
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - NONLETHAL
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - 6MM ARC
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - .224 VALKYRIE
$25.00
In Stock.
Add To Cart
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Classified Defense - Dust Cover Assembly - Discrete - .350 LEGEND
$25.00
In Stock.
Add To Cart
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Classified Defense - Dust Cover Assembly - Discrete - .450 BUSHMASTER
$25.00
In Stock.
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Classified Defense - Dust Cover Assembly - Discrete - 6.8 SPC
$25.00
In Stock.
Add To Cart
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Daniel Defense® - 14.5" - 5.56x45MM - Government Barrel - With Low Profile Gas Block
$424.00
Out of Stock.
Add To Cart
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Forward Control Designs® - SCP Cam Pin - Nitride
$13.00
Out of Stock.
Add To Cart
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Forward Control Designs® - SCP Cam Pin - NP3
$17.00
Out of Stock.
Add To Cart
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Sprinco® - Enhanced Ejector Spring - AR-15 - 3 Pack
$11.00
In Stock.
Add To Cart
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Sprinco® - Enhanced Extractor Spring - 4 Coil - AR15 - 3 Pack
$13.00
In Stock.
Add To Cart
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Sprinco® - Enhanced Extractor Spring - 5 Coil - AR15 - 3 Pack
$12.00
In Stock.
Add To Cart
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Knight's Armament® - MRE Free Float RAS
$525.00
Out of Stock.
Add To Cart
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Classified Defense - Complete Bolt Carrier Group Rehab Kit - 5 Coil
$50.00
Out of Stock.
Add To Cart
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Classified Defense - M16 Bolt Carrier Group - 5.56x45MM - C158 - DLC - FDE
$140.00
In Stock.
Select Options
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Classified Defense - M16 Bolt Carrier Group - 5.56x45MM - C158 - DLC - BLK
$140.00
In Stock.
Select Options
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Classified Defense - M16 Bolt Carrier Group - 5.56x45MM - C158 - DLC - GRY
$140.00
In Stock.
Select Options
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Geissele® - URG-I Airborne Charging Handle - Black
$116.00
Out of Stock.
Add To Cart
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Geissele® - URG-I Airborne Charging Handle - DDC
$126.00
Out of Stock.
Add To Cart
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Classified Defense - Complete Bolt Carrier Group Rehab Kit - 4 Coil
$50.00
Out of Stock.
Add To Cart
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Daniel Defense® - 12.5" - 5.56x45MM - Government Barrel - With Low Profile Gas Block
$424.00
Out of Stock.
Add To Cart
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Sprinco® - Gas Rings - AR15 - 9 Pack
$8.00
In Stock.
Add To Cart
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Michiguns - OCKS - Optimized Carrier Key Screws - 2 Pack
$7.00
In Stock.
Add To Cart
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HUXWRX® - Flash Hider - 1/2-28
$129.00
Out of Stock.
Add To Cart
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HUXWRX® - Muzzle Brake - 1/2-28
$143.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 9.5" - Black
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 10.5" - Black
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 12.5" - Black
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 13.0" FSP - Black
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 9.5" - FDE
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 10.5" - FDE
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 12.5" - FDE
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS III - 13.0" FSP - FDE
$486.00
In Stock.
Add To Cart
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Daniel Defense® - M4A1 RIS II - FDE
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - M4A1 FSP RIS II - FDE
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - M4A1 FSP RIS II - Black
$486.00
Out of Stock.
Add To Cart
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Daniel Defense® - M4A1 RIS II - Black
$486.00
Out of Stock.
Add To Cart
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Classified Defense - 11.5" - 5.56x45MM - Carbine Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - M4 Upper Receiver - Ultimate - Scalloped Rail
$110.00
In Stock.
Select Options
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Classified Defense - M4 Upper Receiver - Ultimate - Enlarged Ejection Port
$110.00
In Stock.
Select Options
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Classified Defense - Shim Kit - 1/2x28 - GEN 2 - 0.725" OD - Black
$40.00
In Stock.
Add To Cart
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Classified Defense - Ultimate M16 Bolt Carrier Group - 5.56x45MM - C158 - Polished DLC/Chrome
$170.00
Out of Stock.
Select Options
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Classified Defense - M16 Bolt Carrier Group - 5.56x45MM - C158 - Chrome
$140.00
In Stock.
Select Options
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Classified Defense - 11.5" - .223 Wylde - Carbine Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 11.3" - .223 Wylde - Carbine Gas - Suppressed Only - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 13.7" - .223 Wylde - Mid Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 13.3" - .223 Wylde - Carbine Gas - Suppressed Only - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 14.5" - .223 Wylde - Mid Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 12.5" - 6MM ARC - Carbine +1 Gas - Suppressed Only - RAT Profile - Assembly
$450.00
Out of Stock.
Select Options
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Classified Defense - Dust Cover Assembly - DEVGRU - 6MM ARC
$25.00
In Stock.
Add To Cart
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Classified Defense - A2 Upper Receiver - Ultimate
$250.00
Out of Stock.
Select Options
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Classified Defense - Shim Kit - 5/8x24 - GEN 2 - 0.825" OD - Black
$45.00
In Stock.
Add To Cart
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HUXWRX® - Flash Hider - 1/2-28 - XL
$138.00
In Stock.
Add To Cart
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Classified Defense - M4 Upper Receiver - Ultimate - Enlarged Ejection Port - Scalloped Rail
$110.00
In Stock.
Select Options
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Classified Defense - M4 Upper Receiver - Enlarged Ejection Port - No Feed Ramps
$110.00
In Stock.
Select Options
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Classified Defense - M4 Upper Receiver - Enlarged Ejection Port - No Feed Ramps - Scalloped Rail
$110.00
In Stock.
Select Options
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Classified Defense - Custom Built Upper Receiver
$1.00
Back Order.
Free Shipping.
Add To Cart
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Classified Defense - 12.5" - 6MM ARC - Carbine +1 Gas - RAT Profile - Assembly
$450.00
Out of Stock.
Select Options
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Classified Defense - 11.3" - .223 Wylde - Carbine Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 10.3" - .223 Wylde - Carbine Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 13.3" - .223 Wylde - Carbine Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - 16.0" - .223 Wylde - Mid Gas - RAT Profile - Assembly
$450.00
In Stock.
Select Options
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Classified Defense - Ultimate M16 Bolt Carrier Group - 6.5 Grendel/6MM ARC - 9310 - DLC/Chrome
$170.00
In Stock.
Select Options
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HUXWRX® - Flash Hider - 5/8-24
$142.00
In Stock.
Add To Cart
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HUXWRX® - Muzzle Brake - 5/8-24
$138.00
Out of Stock.
Add To Cart
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Classified Defense - M4 Upper Receiver - INVENTORY BLOWOUT
$110.00
$60.00
Sale
In Stock.
Select Options
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Classified Defense - Ultimate M16 Bolt Carrier Completion Kit - DLC/Chrome
$100.00
Out of Stock.
Select Options
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Classified Defense - Ultimate M16 Bolt Carrier Completion Kit - Polished DLC/Chrome
$100.00
Out of Stock.
Select Options
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Classified Defense - 10.3" - .223 Wylde - Carbine Gas - Suppressed Only - RAT Profile - Assembly
$450.00
Out of Stock.
Select Options
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Classified Defense - 11.5" - .223 Wylde - Carbine Gas - Suppressed Only - RAT Profile - Assembly
$450.00
Out of Stock.
Select Options
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Classified Defense - 14.5" - .223 Wylde - Carbine Gas - Suppressed Only - RAT Profile - Assembly
$450.00
Out of Stock.
Select Options
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Classified Defense - Gas Tube - Carbine Length Plus 1 Inch
$15.00
In Stock.
Add To Cart
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Classified Defense - Gas Tube - Intermediate Length
$15.00
In Stock.
Add To Cart
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SOLGW® - L89 Drivelock - 10.75"
$410.00
Out of Stock.
Add To Cart
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SOLGW® - L89 Drivelock - 11.75"
$420.00
In Stock.
Add To Cart
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SOLGW® - L89 Drivelock - 13.75"
$420.00
In Stock.
Add To Cart
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SOLGW® - L89 ARCA Drivelock - 13.75"
$430.00
Out of Stock.
Add To Cart
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Classified Defense - 14.5" - 5.56x45MM - Mid Gas - Government Profile
$200.00
Out of Stock.
Add To Cart
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Classified Defense - 14.5" - .223 Wylde - Carbine Gas - RAT Profile - Assembly
$450.00
Out of Stock.
Select Options
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Classified Defense - 11.5" - 5.56x45MM - Carbine Gas - Government Profile
$200.00
Out of Stock.
Add To Cart
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Classified Defense - 12.5" - 5.56x45MM - Carbine Gas - Government Profile
$200.00
Out of Stock.
Add To Cart
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Classified Defense - M4 Upper Receiver - No Forward Assist - Scalloped Rail
$110.00
In Stock.
Select Options
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Daniel Defense® - MK12 Gas Block - .750"
$88.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS II/RIS III & Bolt Up System Barrel Nut
$27.00
Out of Stock.
Add To Cart
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Daniel Defense® - RIS II Hardware Kit
$10.00
In Stock.
Add To Cart
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Daniel Defense® - RIS III Hardware Kit
$13.00
In Stock.
Add To Cart
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