COLT MK18
1 × $2,500.00 
16″ .300 Pink Blackout Upper 15″ Keymod Rail
1 × $204.95 
Cz Ts 2
1 × $1,200.00 
Henry Repeating Arms Big Boy Carbine
1 × $799.00 Subtotal: $4,703.95
$14.50
Fostech Ultra Light Castle Nut compatible with AR15/308/AR10, PCCs, 300 Blackout, 6.5 Grendel
Fostech Ultra Light Castle Nut
Make your next build LITE by using a Fostech Ultra-Light Castle Nut. Fostech machined these AR15 Lower Parts from their proprietary lightweight material. Swapping in this Fostech 2505 Lightweight Castle Nut will reduce your build by 0.34oz compared to a standard castle nut. Save weight and keep the strength with the Fostech Ultra-Light Castle Nut.
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