GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black $436.80 STU5025M4S show more like this Calculated in Cart DACK Outdoors GC_UPC Spike's 556nato M4 Le Upper 16" Blk $443.29 - show more like this Tactical Surplus USA GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025-M4S show more like this Huligan Arms GC_UPC Spikes Tactical 5.56 NATO M4 LE Upper 16-inch Black LE $459.99 STU5025M4S show more like this 14.84 GrabAGun.com GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this 14.95 TheGunDock.com GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this Free shipping over $400 (Excludes Ammo) Gman Sport GC_UPC M4 LE Complete Upper 5.56mm 16in Black MAP STU5025M4S show more like this Free on Guns, $9.99 Accessories, $14.99 Ammo Tombstone Tactical GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this 9.99 SHTF Tactical GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this 8.95 The Armories GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this Free on Firearms Acute Firearms GC_UPC Spikes Tactical Upper 5.56 16in M4 LE w/M4 Handgaurd, Black, STU5025-M4S $567.00 STU5025M4S show more like this Free Shipping on most orders over $49 Optics Planet GC_UPC Spikes Tactical Upper 5.56 16in M4 LE w/M4 Handgaurd, Black, STU5025-M4S $567.00 STU5025M4S show more like this Dvor GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this 14.99 Defense Depot GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black MAP STU5025M4S show more like this Calculated in cart GunZoneDeals GC_UPC Spike's Tactical 16" 5.56 M4 LE Complete AR-15 Upper - with Front Sight Base $699.99 STU5025-M4S show more like this Calculated in Cart Primary Arms GC_UPC Spike STU5025-M4S ST-15 LE Carbine Upper 5.56 16 in M4 Profile Brl A2 Sights Blk MAP STU5025M4S show more like this Flat Rate Starting at $11.99 Hinterland Outfitters GC_UPC Spikes Tactical STU5025-M4S ST-15 LE Carbine Upper 5.56 16" M4 Profile Barrel A2 Sights Black $835.00 STU5025M4S show more like this Calculated in Cart Classic Firearms GC_UPC Spike's Tactical ST-15 LE Upper 5.56 16" for M4 Carbine AR-15 $835.00 STU5025M4S show more like this $9.99 - $19.99 Deguns.net GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black $835.00 STU5025M4S show more like this 14.95 Guns 2 Ammo GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black $835.00 STU5025M4S show more like this Free shipping on orders over $300 Skogen’s Gun Supply GC_UPC Spikes STU5025M4S ST-15 LE Carbine 223 Rem,5.56x45mm NATO Black $835.00 STU5025M4S show more like this 19.99 The Armory at LTT GC_UPC SPIKES TACTICAL M4 LE UPPER 5.56 16IN BLK AR $837.00 STU5025-M4S show more like this Most Firearms ship for FREE KyGunCo GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $837.00 STU5025M4S show more like this Sahuarita Guns GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $837.00 STU5025M4S show more like this $29.99 Handguns, $39.99 Long guns, $19.99 Ammunition, $19.99 Suppressor, $12.95 Everything else, Orders over $1000 ship free United Patriot Supply GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $837.00 STU5025-M4S show more like this Miami Police Depot GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $837.00 STU5025-M4S show more like this Handguns $25 / Rifles $34.99 Charter Tactical GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $837.00 STU5025-M4S show more like this Defensive Ballistics GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $837.00 STU5025-M4S show more like this Mainstreet Munitions GC_UPC Spikes ST-15 LE Carbine with A2 Sight Base STU5025-M4S $860.02 STU5025M4S show more like this Additional, Calculated in cart BFG Outfitters