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European American Armory Conversion Kit, 22LR, 4.5, 9MM & 40S&W Witness, 10Rd 109910 CMMG Upper, 9MM, 16 Barrel, Flat Top, A2 Front Sights, Black Finish 90B1AA2 Advantage Arms Conversion Kit, 22LR, 4.49 Barrel, Fits Glock 20/21 Gen 4,  With Cleaning Kit, Black Finish, 10Rd, 1-10Rd Magazine AAC20-21G4
European American Armory Conversion Kit, 22LR, 4.5", 9MM & 40S&W Witness, 10Rd Manufacturer: European American Armory
Manufacturer Part #: 109910
MSRP: $265.00
Our Price:  $154.74 
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CMMG Upper, 9MM, 16" Barrel, Flat Top, A2 Front Sights, Black Finish Manufacturer: CMMG
Manufacturer Part #: 90B1AA2
MSRP: $749.95
Our Price:  $620.38 
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Advantage Arms Conversion Kit, 22LR, 4.49" Barrel, Fits Glock 20/21 Gen 4, With Cleaning Kit, Black Finish, 10Rd, 1-10Rd Magazine Manufacturer: Advantage Arms
Manufacturer Part #: AAC20-21G4
MSRP: $265.00
Our Price:  $234.83 
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CMMG Upper, 223 Rem/556NATO, 16 WASP Treated Barrel, 1:9 Twist, Flat Top,  A2 Front Sights, Black Finish 55BE1F0 Advantage Arms Conversion Kit, 22LR, Fits 1911, With Cleaning Kit, Black Finish, Target Sights, 1-10Rd Magazine AAC191122T Spike's Tactical Upper, 223 Rem/556NATO, 16 FN Hammer Forged Barrel, Fits AR Rifles, Mid-length, Front Sight Post, Black Finish STU5435-MLS
CMMG Upper, 223 Rem/556NATO, 16" WASP Treated Barrel, 1:9 Twist, Flat Top, A2 Front Sights, Black Finish Manufacturer: CMMG
Manufacturer Part #: 55BE1F0
MSRP: $649.95
Our Price:  $562.80 
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Advantage Arms Conversion Kit, 22LR, Fits 1911, With Cleaning Kit, Black Finish, Target Sights, 1-10Rd Magazine Manufacturer: Advantage Arms
Manufacturer Part #: AAC191122T
MSRP: $366.67
Our Price:  $298.58 
In Stock 
Spike's Tactical Upper, 223 Rem/556NATO, 16" FN Hammer Forged Barrel, Fits AR Rifles, Mid-length, Front Sight Post, Black Finish Manufacturer: Spike's Tactical
Manufacturer Part #: STU5435-MLS
MSRP: $680.00
Our Price:  $579.18 
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Bushmaster Upper M4A3 ,223 Rem/556NATO, 16 Barrel, Bayonet Lug and A2 Birdcage Flash Hider, Flat Top, Black Finish, Complete Barrel Assembly w/BCG 91823 Advantage Arms Conversion Kit, 22LR, 4.49 Barrel, Fits Springfield Armory XD 9/40, Non-XDM Frames Only, Does Not Fit 3 Sub-compact, With Cleaning Kit, Black Finish, 10Rd, 1-10Rd Magazine XD940-4 CORE 15 Upper, 223 Rem/556NATO, 16 M4 Profile Barrel, A2Flash Hider, Front Sight Base, Black Finish 100276
Bushmaster Upper M4A3 , 223 Rem/556NATO, 16" Barrel, Bayonet Lug and A2 Birdcage Flash Hider, Flat Top, Black Finish, Complete Barrel Assembly w/BCG Manufacturer: Bushmaster
Manufacturer Part #: 91823
MSRP: $539.00
Our Price:  $425.82 
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Advantage Arms Conversion Kit, 22LR, 4.49" Barrel, Fits Springfield Armory XD 9/40, Non-XDM Frames Only, Does Not Fit 3" Sub-compact, With Cleaning Kit, Black Finish, 10Rd, 1-10Rd Magazine Manufacturer: Advantage Arms
Manufacturer Part #: XD940-4
MSRP: $285.00
Our Price:  $251.52 
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CORE 15 Upper, 223 Rem/556NATO, 16" M4 Profile Barrel, A2Flash Hider, Front Sight Base, Black Finish Manufacturer: CORE 15
Manufacturer Part #: 100276
MSRP: $584.99
Our Price:  $468.39 
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Rock River Arms Upper, Varmint, 223 Rem/556 NATO, 20 Barrel, 1:9Twist, Fits AR, Free Float Handguard, Black Finish AR0550 Rock River Arms CAR A4 Upper, 223 Rem/556NATO, 16 Barrel, 1:9 Twist, Black Finish, Mid-Length Handguard, A2 Flash Hider AR0874B Windham Weaponry Upper, HBC, 223 Rem/556NATO, 16 Heavy Barrel, Fits AR Rifles, Chrome Lined, A3 Carry Handle, BlackFinish UR16LHB
Rock River Arms Upper, Varmint, 223 Rem/556 NATO, 20" Barrel, 1:9Twist, Fits AR, Free Float Handguard, Black Finish Manufacturer: Rock River Arms
Manufacturer Part #: AR0550
MSRP: $770.00
Our Price:  $723.41 
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Rock River Arms CAR A4 Upper, 223 Rem/556NATO, 16" Barrel, 1:9 Twist, Black Finish, Mid-Length Handguard, A2 Flash Hider Manufacturer: Rock River Arms
Manufacturer Part #: AR0874B
MSRP: $570.00
Our Price:  $511.95 
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Windham Weaponry Upper, HBC, 223 Rem/556NATO, 16" Heavy Barrel, Fits AR Rifles, Chrome Lined, A3 Carry Handle, BlackFinish Manufacturer: Windham Weaponry
Manufacturer Part #: UR16LHB
MSRP: $560.00
Our Price:  $492.53 
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Windham Weaponry Upper, SRC, 223 Rem/556NATO, 16 M4 Barrel With Bayonet Lug and A2 Birdcage Flash Hider, Fits AR Rifles, Chrome Lined, Flat Top, Black Finish UR16M4FTB Windham Weaponry Upper, 223 Rem/556NATO, 16 M4 Barrel, Bayonet Lug and A2 Birdcage, Fits AR Rifles, Chrome Lined Chamber, A3 Sights, Black Finish UR16M4LHB CMMG Upper, 223 Rem/556NATO, 16 Barrel, 1:7 Twist, Free Floating KeyMod Handguard, SV Brake, Flat Top Sights, Black 55B5949
Windham Weaponry Upper, SRC, 223 Rem/556NATO, 16" M4 Barrel With Bayonet Lug and A2 Birdcage Flash Hider, Fits AR Rifles, Chrome Lined, Flat Top, Black Finish Manufacturer: Windham Weaponry
Manufacturer Part #: UR16M4FTB
MSRP: $570.00
Our Price:  $492.53 
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Windham Weaponry Upper, 223 Rem/556NATO, 16" M4 Barrel, Bayonet Lug and A2 Birdcage, Fits AR Rifles, Chrome Lined Chamber, A3 Sights, Black Finish Manufacturer: Windham Weaponry
Manufacturer Part #: UR16M4LHB
MSRP: $570.00
Our Price:  $492.53 
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CMMG Upper, 223 Rem/556NATO, 16" Barrel, 1:7 Twist, Free Floating KeyMod Handguard, SV Brake, Flat Top Sights, Black Manufacturer: CMMG
Manufacturer Part #: 55B5949
MSRP: $849.95
Our Price:  $703.10 
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Yankee Hill Machine Co Upper, Black Diamond Carbine Top End, 556NATO, 16 Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight YHM-7800-7 Yankee Hill Machine Co Upper, Specter Black Diamond Carbine Top End, 556NATO, 16 Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight YHM-7810-7 Yankee Hill Machine Co Upper, Black Diamond Specter XL Carbine Top End, 556NATO, 16 Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight YHM-7820-7
Yankee Hill Machine Co Upper, Black Diamond Carbine Top End, 556NATO, 16" Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight Manufacturer: Yankee Hill Machine Co
Manufacturer Part #: YHM-7800-7
MSRP: $934.00
Our Price:  $727.32 
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Yankee Hill Machine Co Upper, Specter Black Diamond Carbine Top End, 556NATO, 16" Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight Manufacturer: Yankee Hill Machine Co
Manufacturer Part #: YHM-7810-7
MSRP: $970.00
Our Price:  $755.40 
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Yankee Hill Machine Co Upper, Black Diamond Specter XL Carbine Top End, 556NATO, 16" Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight Manufacturer: Yankee Hill Machine Co
Manufacturer Part #: YHM-7820-7
MSRP: $995.00
Our Price:  $787.30 
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Spike's Tactical Upper, Law Enforcement, 223 Rem/556NATO, 16 Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, M4 LE w/12 SAR Rail, with SAR Rail System and No Mags STU5025-S2S Midwest Industries Forged Upper, No Barrel or BCG, Black Finish MI-FCU CMMG MK4T Upper, 300 AAC Blackout, 16 Barrel, Fits AR, Flat Top, A2 Brake Chokes, CMMG RKM11 KeyMod Handguard, Black 30B129A
Spike's Tactical Upper, Law Enforcement, 223 Rem/556NATO, 16" Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, M4 LE w/12" SAR Rail, with SAR Rail System and No Mags Manufacturer: Spike's Tactical
Manufacturer Part #: STU5025-S2S
MSRP: $868.00
Our Price:  $739.31 
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Midwest Industries Forged Upper, No Barrel or BCG, Black Finish Manufacturer: Midwest Industries
Manufacturer Part #: MI-FCU
MSRP: $119.95
Our Price:  $106.14 
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CMMG MK4T Upper, 300 AAC Blackout, 16" Barrel, Fits AR, Flat Top, A2 Brake Chokes, CMMG RKM11 KeyMod Handguard, Black Manufacturer: CMMG
Manufacturer Part #: 30B129A
MSRP: $699.95
Our Price:  $615.57 
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CMMG MK4T SBN Upper, Fits AR, 223 Rem/556NATO, 16 Barrel, A2 Brake, Flat Top, CMMG RKM11 KeyMod Handguard, Black 55BC76A PW Arms Upper, AR57LEM, 5.7x28mm, 16 Fluted Barrel, Black Finish, Lightweight, with Quad Rail AR57LEM-UA Windham Weaponry Upper, VEX-SS, 223 Rem/556NATO, 20 Stainless Fluted Barrel, Flat Top, Black Finish UR20FSSFTVB
CMMG MK4T SBN Upper, Fits AR, 223 Rem/556NATO, 16" Barrel, A2 Brake, Flat Top, CMMG RKM11 KeyMod Handguard, Black Manufacturer: CMMG
Manufacturer Part #: 55BC76A
MSRP: $699.95
Our Price:  $615.57 
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PW Arms Upper, AR57LEM, 5.7x28mm, 16" Fluted Barrel, Black Finish, Lightweight, with Quad Rail Manufacturer: PW Arms
Manufacturer Part #: AR57LEM-UA
MSRP: $899.00
Our Price:  $695.57 
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Windham Weaponry Upper, VEX-SS, 223 Rem/556NATO, 20" Stainless Fluted Barrel, Flat Top, Black Finish Manufacturer: Windham Weaponry
Manufacturer Part #: UR20FSSFTVB
MSRP: $775.00
Our Price:  $717.18 
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CMMG MK3 Upper, 308 Win, 18 Stainless Barrel, Stainless Finish 38BCC38 CMMG MK3 CBR Upper, 308 Win, 16 Stainless Barrel, Stainless Finish 38BEA94 Wilson Combat Upper, 300 Blackout, 16 Stainless Steel, Type 416R, Six Groove Barrel, 1:8 Twist, For AR-15, Complete Upper Assembly, Tactical Rail Interface 10.4,Accu-Tac Flash Hider, Flat Top, Black TR-300RC16UP
CMMG MK3 Upper, 308 Win, 18" Stainless Barrel, Stainless Finish Manufacturer: CMMG
Manufacturer Part #: 38BCC38
MSRP: $999.95
Our Price:  $847.67 
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CMMG MK3 CBR Upper, 308 Win, 16" Stainless Barrel, Stainless Finish Manufacturer: CMMG
Manufacturer Part #: 38BEA94
MSRP: $1099.95
Our Price:  $920.49 
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Wilson Combat Upper, 300 Blackout, 16" Stainless Steel, Type 416R, Six Groove Barrel, 1:8 Twist, For AR-15, Complete Upper Assembly, Tactical Rail Interface 10.4", Accu-Tac Flash Hider, Flat Top, Black Manufacturer: Wilson Combat
Manufacturer Part #: TR-300RC16UP
MSRP: $1363.79
Our Price:  $1,274.57 
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Advantage Arms Conversion Kit, 22LR, 4.49 Barrel, Fits Springfield Armory XDM 9/40, XDM Frames Only, 3.8 Compact Requires Mag Extension, Includes Cleaning Kit, Black, 10Rd, 1-10Rd Magazine XDM940-4M CMMG Upper MK4LE, 300 AAC Blackout, 16 Barrel, 1:7 Twist, M16 Bolt Group, Railed Gas Block, Black 30BF85F CMMG Upper MK3 T, 308 Win, 16  Barrel, 1:10 Twist, Billet Upper, RKM15 KeyMod Handguard, Black 38BEAAD
Advantage Arms Conversion Kit, 22LR, 4.49" Barrel, Fits Springfield Armory XDM 9/40, XDM Frames Only, 3.8" Compact Requires Mag Extension, Includes Cleaning Kit, Black, 10Rd, 1-10Rd Magazine Manufacturer: Advantage Arms
Manufacturer Part #: XDM940-4M
MSRP: $285.00
Our Price:  $251.52 
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CMMG Upper MK4LE, 300 AAC Blackout, 16" Barrel, 1:7 Twist, M16 Bolt Group, Railed Gas Block, Black Manufacturer: CMMG
Manufacturer Part #: 30BF85F
MSRP: $674.95
Our Price:  $586.16 
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CMMG Upper MK3 T, 308 Win, 16 " Barrel, 1:10 Twist, Billet Upper, RKM15 KeyMod Handguard, Black Manufacturer: CMMG
Manufacturer Part #: 38BEAAD
MSRP: $1049.95
Our Price:  $890.06 
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Displaying 1 to 30 (of 80 products)
Result Pages:  1  2  3  [Next >>]