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Upper Components

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Showing 273–288 of 333 results

Sigma Six Tactical AR-15 10″ SUPER LIGHT M-LOK SERIES FREE FLOAT HANDGUARD WITH PARTIAL TOP RAIL

$26.99 Read more
Sigma Six Tactical AR-15 12″ MLOK HANDGUARD

$46.19 Read more
Sigma Six Tactical AR-15 12″ NO Timing Free Float Slim Handguard Key-Mod

$41.09 Read more
Sigma Six Tactical AR-15 12″ No Timing Free Float Slim Key-Mod Handguard Wedge

$41.09 Read more
Sigma Six Tactical AR-15 13″ SUPER LIGHT M-LOK SERIES FREE FLOAT HANDGUARD WITH PARTIAL TOP RAIL

1 review
$32.09 Read more
Sigma Six Tactical AR-15 16″ 450 Bushmaster 1/24 Twist 4150 CMV Barrel Black Nitride

$141.09 Add to cart
SIGMA SIX TACTICAL AR-15 16″ 7.62×39 1/10 Twist SAAMI Barrel Carbine Gas System

$89.79 Add to cart
Sigma Six Tactical AR-15 19″ Super Light M-LOK Series Free Float Handguard

$50.69 Read more
Sale!
SIGMA SIX TACTICAL AR-15 19″ SUPER LIGHT M-LOK SERIES FREE FLOAT HANDGUARD – No Barrel Nut

Original price was: $53.39.Current price is: $32.89. Read more
Sale!
Sigma Six Tactical AR-15 4″ Handguard

Original price was: $27.99.Current price is: $15.99. Read more
Sigma Six Tactical AR-15 5.56 16″ UPPER ASSEMBLY (NO BCG) – Red

$287.29 Read more
Sigma Six Tactical AR-15 7.5″ 7.62×39 1/10 Twist SAAMI Barrel Pistol Gas System Black Nitride

$89.79 Add to cart
SIGMA SIX TACTICAL AR-15 7.62 PISTOL 7.5″ UPPER BUILD KIT

$119.19 Read more
Sigma Six Tactical AR-15 7.62×39 and 9×39 Bolt Carrier Group Black Nitride MPI

$83.39 Add to cart
Sigma Six Tactical AR-15 7″ Free Float M-LOK Handguard

$29.59 Read more
SIGMA SIX TACTICAL AR-15 A4 Raw Aluminum UPPER RECEIVER

$43.29 Add to cart

Upper Components

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Upper Components

Sigma Six Tactical AR-15 10″ SUPER LIGHT M-LOK SERIES FREE FLOAT HANDGUARD WITH PARTIAL TOP RAIL

Sigma Six Tactical AR-15 12″ MLOK HANDGUARD

Sigma Six Tactical AR-15 12″ NO Timing Free Float Slim Handguard Key-Mod

Sigma Six Tactical AR-15 12″ No Timing Free Float Slim Key-Mod Handguard Wedge

Sigma Six Tactical AR-15 13″ SUPER LIGHT M-LOK SERIES FREE FLOAT HANDGUARD WITH PARTIAL TOP RAIL

Sigma Six Tactical AR-15 16″ 450 Bushmaster 1/24 Twist 4150 CMV Barrel Black Nitride

SIGMA SIX TACTICAL AR-15 16″ 7.62×39 1/10 Twist SAAMI Barrel Carbine Gas System

Sigma Six Tactical AR-15 19″ Super Light M-LOK Series Free Float Handguard

SIGMA SIX TACTICAL AR-15 19″ SUPER LIGHT M-LOK SERIES FREE FLOAT HANDGUARD – No Barrel Nut

Sigma Six Tactical AR-15 4″ Handguard

Sigma Six Tactical AR-15 5.56 16″ UPPER ASSEMBLY (NO BCG) – Red

Sigma Six Tactical AR-15 7.5″ 7.62×39 1/10 Twist SAAMI Barrel Pistol Gas System Black Nitride

SIGMA SIX TACTICAL AR-15 7.62 PISTOL 7.5″ UPPER BUILD KIT

Sigma Six Tactical AR-15 7.62×39 and 9×39 Bolt Carrier Group Black Nitride MPI

Sigma Six Tactical AR-15 7″ Free Float M-LOK Handguard

SIGMA SIX TACTICAL AR-15 A4 Raw Aluminum UPPER RECEIVER

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