Spikes SFT50M4 Flat Top Stripped Upper Multi-Caliber 7075-T6 Aluminum Black Anodized Receiver for M4 Platform $103.50
Bowden Tactical J27113 AR Rifle Build Kit Complete, 13" M-Lok Handguard, Mil-Spec Parts, Flip Up Sights $725.95
Spikes STU5025M4S Complete Upper 5.56x45mm NATO 16" Black Phosphate Barrel, 7075-T6 Aluminum Black Receiver, M4 Double Head Shield Handguard for M4 Carbine $837.00
Bowden Tactical J27115 AR Rifle Build Kit Complete, 15" M-Lok Handguard, Mil-Spec Parts, Flip Up Sights $725.95
Spikes STU5025R9S Complete Upper 5.56x45mm NATO 16" Black Phosphate Barrel, 7075-T6 Aluminum Black Receiver, 9" BAR2 Free-Float Handguard for M4 Carbine $743.40
Spikes STU5435MLS Complete Upper 5.56x45mm NATO 16" Black Phosphate/Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12" SAR3 Free-Floating Handguard for AR-15 $630.00
Radian Weapons R0023 Complete Upper 223 Wylde 10.50" Black Barrel, 7075-T6 Aluminum Radian Black Receiver, Extended with Magpul M-LOK Handguard for AR-15 $1,904.95