Daniel Defense MK18 5.56 vs Tacfire 7" Upper 5.56x45mm

Why the Tacfire 7" Upper 5.56x45mm 1:8 wins

Builders pick the Tacfire 7" Upper 5.56x45mm 1:8 4 to 1 over the Daniel Defense MK18 5.56 Group. It is in 2.6% of GunPartPicker builds that have an upper receiver, against 0.7% for the Daniel Defense MK18 5.56 Group. It is also the cheaper one today: $296.92 at KY Gun Company, $1,157 less than the Daniel Defense MK18 5.56 Group.

3 stores we track have the Tacfire 7" Upper 5.56x45mm 1:8 in stock. Builders paid a median $241.33 for it when they added it, against $1,279.99 for the Daniel Defense MK18 5.56 Group. On paper they differ on length (7 against 10.3). It is most often built with the Breek Arms Warhammer MOD2 Charging and the Cryptic Coatings 5.56 NATO Bolt.

Key differences

• Builder picks: 21% for the Daniel Defense MK18 5.56 Group, 79% for the Tacfire 7" Upper 5.56x45mm 1:8
• Lowest price in stock: $1,454.00 for the Daniel Defense MK18 5.56 Group, $296.92 for the Tacfire 7" Upper 5.56x45mm 1:8
• Stores with it in stock: 1 for the Daniel Defense MK18 5.56 Group, 3 for the Tacfire 7" Upper 5.56x45mm 1:8
• Median paid by builders: $1,279.99 for the Daniel Defense MK18 5.56 Group, $241.33 for the Tacfire 7" Upper 5.56x45mm 1:8
• Length: 10.3 for the Daniel Defense MK18 5.56 Group, 7 for the Tacfire 7" Upper 5.56x45mm 1:8

About the brands

• Daniel Defense makes cold hammer forged barrels, SOCOM rails and complete AR rifles, with nearly every step done in house in Georgia. More on Daniel Defense
• TacFire is a dealer only wholesaler, so you'll find its stripped uppers, lower parts kits and AR kits at online retailers, not on its own site. More on TacFire