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Serving SC Since 1961
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Uppers & Conversion Kits
Uppers & Conversion Kits
721 products
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Primary Weapons Systems
Primary Weapons Systems MK109 Mod 1-M Upper Receiver 300 Blackout 9.75" Black Anodized - MK1M1U300BLK9
MSRP: $1209.95
$1022.00
Out of Stock
Primary Weapons Systems
Primary Weapons Systems MK109 Mod 2-M Upper Receiver, 300 Blackout, 9.75" - MK1M2U300BLK9
MSRP: $1499.95
$1316.00
Out of Stock
Primary Weapons Systems
Primary Weapons Systems MK1 Mod 1-M Upper 223 Wylde 11.85" Black Anodized - MK1-M1U-223-11
MSRP: $1209.95
$957.00
Out of Stock
Luth-AR
Luth-AR Palm Handguard Vented 9" M-LOK, Black Anodized - HG-V-9M
MSRP: $87.95
$77.00
Add to Cart
Q LLC
Q LLC Q-Sert Handguard 7" Aluminum For The Fix, Gray Anodized - ACC-FIX-HG-QSERT-7IN
MSRP: $350.00
$288.00
Add to Cart
Barrett
Barrett MRAD Barrel Conversion Kit, 6.5 Creedmoor, 24" Fluted - 18529
MSRP: $1760.00
$1564.00
Add to Cart
Rosco Manufacturing
Rosco Manufacturing Bloodline 10.5" Barrel Sauce Pack 5.56 NATO, Black Melonite - SP-BL-105-556-BCG-GTC
MSRP: $325.00
$314.00
Add to Cart
CMMG
CMMG Echo .22 LR AR Conversion Kit, 25-Round Magazine, Black Steel - 22BA64E
MSRP: $229.95
$183.00
Add to Cart
Angstadt Arms
Angstadt Arms 9mm AR-15 Barrel, 6" Threaded 1/2x28, Black - AA0906BB28
MSRP: $119.95
$101.00
Add to Cart
TacFire
TacFire AR-15 Mil-Spec Forged Strip Upper Receiver - UP01
$54.00
Out of Stock
TacFire
TacFire MAR010 .750 Gas Block Pinned Rifle, Black - MAR010750GB
$22.00
Add to Cart
TacFire
TacFire 10" .308 Winchester Built Upper with BCG - BU30810
$415.00
Add to Cart
TacFire
TacFire HG27-10 10" M-LOK Handguard, Full Rail QD - HG2710
$32.00
Add to Cart
Battle Arms Development
Battle Arms Development Workhorse Upper Receiver, Aluminum OD Green Anodized - WH556-URS-ODG
$109.00
Out of Stock
Battle Arms Development
Battle Arms Development Workhorse Upper Receiver, Aluminum Black Anodized AR15/M4 - WH556-URS
$109.00
Out of Stock
TacFire
TacFire HG27-7 7" M-LOK Handguard, Full-Length with Quick Detach - HG277
$29.00
Out of Stock
TacFire
TacFire Complete Upper Receiver 5.56 NATO 16" Black Nitride - SSBU55616
$305.00
Out of Stock
TacFire
TacFire Complete Upper Assembly .45 ACP 10" Black Nitride - BU45ACP10
$305.00
Out of Stock
TacFire
TacFire Complete Upper Assembly, 300 Blackout, 5" Barrel, Black Nitride - BU3005
$318.00
Add to Cart
TacFire
TacFire AR-15 Billet Slick Upper Receiver, Black Anodized - UP03
$58.00
Out of Stock
TacFire
TacFire BU-45ACP-16 Rifle Upper Assembly, 45 ACP, 16" Black Nitride Barrel, Black Anodized - BU45ACP16
$311.00
Out of Stock
TacFire
TacFire BU9MM4 Pistol Upper Assembly 9mm Luger 4" Black Nitride - BU9MM4
$272.00
Out of Stock
CMMG
CMMG Dissent Upper Receiver Assembly 22 ARC 16.10" 6061-T6 Aluminum - 28B940CTNG
$1149.00
Add to Cart
CMMG
CMMG Dissent 22 ARC Upper Receiver Assembly, 16.10" Barrel - 28B940CTI
$1149.00
Add to Cart
CMMG
CMMG Dissent 22 ARC Upper Receiver Assembly, 16.10" Barrel - 28B940CSG
$1149.00
Add to Cart
CMMG
CMMG Dissent 22 ARC Upper Receiver 16.10" 6061-T6 Aluminum - 28B940CMB
$1269.00
Add to Cart
CMMG
CMMG Dissent 22 ARC Upper Receiver Assembly, 16.10" Barrel - 28B940CCG
$1229.00
Add to Cart
CMMG
CMMG Resolute 22 ARC Upper Receiver Assembly 16.10" Barrel 15" M-LOK Handguard - 28B260CMB
$788.00
Add to Cart
CMMG
CMMG Resolute 22 ARC 16.10" Upper Receiver, 15" M-LOK Handguard - 28B260CCT
$788.00
Out of Stock
CMMG
CMMG Resolute 22 ARC Upper Receiver 16.10" Barrel 15" M-LOK Handguard - 28B260CAB
$788.00
Out of Stock
CMMG
CMMG Bravo Conversion Kit 22 LR, Stainless Steel, Fits AR-15 - 22BA60F
$144.00
Add to Cart
CMMG
CMMG Resolute MK4 Upper Receiver 5.56x45mm NATO 16.1", Armor Black M-LOK Free-Float - 55BB40BAB
$468.00
Add to Cart
CMMG
CMMG Dissent 9mm Luger Upper Receiver, 10.50" Barrel, Left Side Charging Handle, Armor Black - 99B80E4AB
$1160.00
Out of Stock
CMMG
CMMG Dissent 9mm Luger Upper Receiver Assembly, 6.50" Barrel, Left Side Charging Handle, Armor Black - 94B6829AB
$1160.00
Out of Stock
CMMG
CMMG Dissent MK4 300 Blackout 10.5" Upper Receiver Assembly, Armor Black - 30BC239AB
$1160.00
Out of Stock
CMMG
CMMG Dissent MK4 5.56x45mm NATO Upper Receiver, 10.50" Barrel, Left Side Charging Handle, Armor Black - 55B8D86AB
$1160.00
Out of Stock
CMMG
CMMG Dissent MK4 5.7x28mm Upper Receiver, 6.50" Barrel, Left Charging Handle, Armor Black - 57BA8AEAB
$1160.00
Out of Stock
Daniel Defense
Daniel Defense M4A1 RIII URG Upper Receiver Group 5.56 NATO 14.5" Barrel, Matte Black - 23-004-01097-006
MSRP: $1660.00
$1489.00
Out of Stock
Daniel Defense
Daniel Defense DD4 RIII Upper Receiver Group 5.56 NATO 16" Matte Black - 23-191-20088-006
MSRP: $1660.00
$1489.00
Add to Cart
Daniel Defense
Daniel Defense DDM4 V7 Pro URG Upper Receiver Group, 5.56 NATO, 18" Barrel, Matte Black - 23-128-20044-047
MSRP: $1733.00
$1553.00
Out of Stock
Battle Arms Development
Battle Arms Development Authority Elite Upper Receiver, Black Anodized - BAD556-LW-UR
$224.00
Out of Stock
Aero Precision
Aero Precision M4E1T Complete Upper 10" Barrel 300 Blackout - APAR700702M4
MSRP: $615.00
$544.00
Out of Stock
Aero Precision
Aero Precision M4E1T Complete Upper 11.5" 5.56 Barrel - APAR700702M29
MSRP: $505.00
$447.00
Out of Stock
Aero Precision
Aero Precision M4E1 Stripped Upper Receiver, Anodized FDE - APAR700202C
MSRP: $170.00
$144.00
Out of Stock
Aero Precision
Aero Precision M5 Complete Upper 20" Barrel .308 Win - APAR538105M27
MSRP: $800.00
$707.00
Out of Stock
Ruger
Ruger Max-9 Slide Assembly, Black Oxide - 90744
MSRP: $169.99
$99.00
Add to Cart
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