Upper Parts

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NBS 20" 6.5 Grendel 1:8 5R Twist Black Nitride Rifle Length Contour Barrel w/ Straight Flutes
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NBS 20″ 6.5 Grendel 1:8 5R Twist Black Nitride Rifle Length Contour Barrel w/ Straight Flutes

$139.95
NBS 20" 5.56 Rifle Quad Rail Upper Assembly
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NBS 20″ 5.56 Rifle Quad Rail Upper Assembly

$399.95
20" .224 Valkyrie Stainless Spiral Fluted Rifle Length Barrel 1:7 Twist
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20″ .224 Valkyrie Stainless Spiral Fluted Rifle Length Barrel 1:7 Twist

$139.95
NBS 18" 6.5 Grendel Type II Mid-Length Nitride 1:8 Heavy Barrel
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NBS 18″ 6.5 Grendel Type II Mid-Length Nitride 1:8 Heavy Barrel

$139.95
18" 416R Stainless Steel Heavy Barrel .458 SOCOM Mid Length Gas System w/ 1:14 Twist
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18″ 416R Stainless Steel Heavy Barrel .458 SOCOM Mid Length Gas System w/ 1:14 Twist

$129.99
NBS 18" 4150 Black Nitride Heavy Barrel, Straight Fluted, 6.5 Grendel Type II, Mid Length Gas System, 1:8 5R Twist
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NBS 18″ 4150 Black Nitride Heavy Barrel, Straight Fluted, 6.5 Grendel Type II, Mid Length Gas System, 1:8 5R Twist

$129.95
18" .224 Valkyrie Mid-Length 416R Stainless Steel Spiral Fluted Heavy Barre 1:7 Twist
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Out of stock

18″ .224 Valkyrie Mid-Length 416R Stainless Steel Spiral Fluted Heavy Barre 1:7 Twist

$139.95
NBS 18" .223 Wylde Spiral Fluted 1:8 Fortis Night Rail Upper Assembly
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NBS 18″ .223 Wylde Spiral Fluted 1:8 Fortis Night Rail Upper Assembly

$570.95
NBS 18" .223 Wylde Parkerized Spiral Fluted 1:8 Mid-Length Barrel
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NBS 18″ .223 Wylde Parkerized Spiral Fluted 1:8 Mid-Length Barrel

$107.72
NBS 18" .223 Wylde 1:8 Complete Upper
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NBS 18″ .223 Wylde 1:8 Complete Upper

$616.95
NBS 16" Lightweight Slick Slide Billet .223 Wylde Mid-Length 1:8 M-LOK Complete Upper
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NBS 16″ Lightweight Slick Slide Billet .223 Wylde Mid-Length 1:8 M-LOK Complete Upper

$509.95
NBS 16" Black Nitride 4150 Steel Contour Barrel, 6.5 Grendel Type II, Straight Flutes, Carbine Length Gas System w/ 1:8 Twist
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Out of stock

NBS 16″ Black Nitride 4150 Steel Contour Barrel, 6.5 Grendel Type II, Straight Flutes, Carbine Length Gas System w/ 1:8 Twist

$129.95
16" 7.62x39mm Heavy Contour 1:10 Carbine 416R Barrel - Stainless
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16″ 7.62x39mm Heavy Contour 1:10 Carbine 416R Barrel – Stainless

$119.95
16" 6.8 SPC II M4 Contour 1:10 Carbine 41V50 Barrel - Parkerized
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Out of stock

16″ 6.8 SPC II M4 Contour 1:10 Carbine 41V50 Barrel – Parkerized

$109.95
NBS 16" 6.8 SPC II Carbine Quad Rail Upper Assembly
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Out of stock

NBS 16″ 6.8 SPC II Carbine Quad Rail Upper Assembly

$299.95
NBS 16" 6.5 Grendel II M4 Contour 1:8 Carbine 416R Barrel - Straight Fluted - Black Nitride
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Out of stock

NBS 16″ 6.5 Grendel II M4 Contour 1:8 Carbine 416R Barrel – Straight Fluted – Black Nitride

$139.95
16" 5.56 Parkerized 1:9 Twist Carbine Length Barrel
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16″ 5.56 Parkerized 1:9 Twist Carbine Length Barrel

$99.95
NBS 16" 5.56 Parkerized 1:8 Carbine Length Barrel
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NBS 16″ 5.56 Parkerized 1:8 Carbine Length Barrel

$110.38
16" 5.56 NATO Contour 1:7 Mid Length 416R Barrel - Stainless
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16″ 5.56 NATO Contour 1:7 Mid Length 416R Barrel – Stainless

$119.95
16" 5.56 NATO 1:8 Twist 4150V Black Nitride Mid-Length Barrel
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16″ 5.56 NATO 1:8 Twist 4150V Black Nitride Mid-Length Barrel

$129.95
16" 5.56 HBAR 1:9 Twist Black Nitride Carbine Barrel
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16″ 5.56 HBAR 1:9 Twist Black Nitride Carbine Barrel

$149.95
NBS 16" 5.56 Barreled Upper Combo Kit
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NBS 16″ 5.56 Barreled Upper Combo Kit

$166.95
16" 416R Stainless Steel M4 Contour Barrel .300 Blackout Carbine Length G 1:8 Twist
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Out of stock

16″ 416R Stainless Steel M4 Contour Barrel .300 Blackout Carbine Length G 1:8 Twist

$119.99
16" 4150 Steel M4 Contour Barrel .350 Legend Carbine Length Gas System w/ 1:16 Twist
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Out of stock

16″ 4150 Steel M4 Contour Barrel .350 Legend Carbine Length Gas System w/ 1:16 Twist

$114.37