The M4 Mod-1 line represents the pinnacle of the BKF brand; the “crème de la crème”. Taking all of the functional cues made popular in the BKF and M4 Mod-0 series, the M4 Mod-1 focuses on the needs and requirements of the high-end custom builder. Utilizing the same high-quality, premium blocks of 7075-T6 aluminum, the M4 Mod-1 series stays true to the “Made in the U.S.A.” ethos, but with a twist. The machine work on these sets, while focusing on tight tolerances and enhanced fit and function, pays extra attention to the style and aesthetics desired by today’s top builders. Machined pocket cuts, aside from providing an eye-catching design, greatly reduce the overall weight on the receivers and rails, providing a light, one- of-a-kind build. The high quality machine-work on these receiver sets lends itself perfectly to a multitude of cerakote finishes, from battleworn to custom one-off theme jobs. The M4 Mod-1 line also includes buffer systems and springs matched to the gas system, barrel length, and caliber, polished Nickel Teflon triggers, and Combat Control kits standard to all builds. The M4 Mod-1 line from BKF raises the bar for your next build.
Showing 1–48 of 113 results
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BKF M4 MK1 5.56/223 Comp
$23.38 UPC: 810124540005511 in stock -
BKF M4 MK1 300 BLK/6.5 Grendel Comp
$23.38 UPC: 810124540012652 in stock -
BKF M4 MK1 5.56/223 Extended Comp
$25.06 UPC: 810124541460196 in stock -
BKF M4 MOD-1 Standard Power Carbine Buffer Tube Assembly (8 POS)
$46.21 UPC: 81012454078497 in stock -
BKF M4 MOD-1 Intermediate Power Carbine Buffer Tube Assembly (8 POS)
$54.61 UPC: 81012454086937 in stock -
BKF M4 MOD-1 Extra Power Carbine Buffer Tube Assembly (8 POS)
$64.41 UPC: 810124541231110 in stock -
BKF M4 MOD-1 Stripped Lower Receiver – Anodized
$100.10Out of stock -
BKF M4 MOD-1 10.5″ M-LOK Handguard
$110.25 UPC: 810124541323Out of stock -
BKF M4 MOD-1 11.5″ M-LOK Handguard
$112.70 UPC: 810124541361Out of stock -
BKF M4 MOD-1 Stripped Upper Receiver – Midnight Bronze Cerakote
$115.50Out of stock -
BKF M4 MOD-1 15″ M-LOK Handguard – Burnt Bronze Cerakote
$119.9914 in stock -
BKF M4 MOD-1 15″ M-LOK Handguard – Midnight Bronze Cerakote
$119.995 in stock -
BKF M4 MOD-1 15″ M-LOK Handguard – OD Green Cerakote
$119.996 in stock -
BKF M4 MOD-1 15″ M-LOK Handguard – FDE Cerakote
$119.994 in stock -
BKF AR15 Enhanced M4 MOD-1 Combat Control Kit (LPK)
$126.15 UPC: 810124541798336 in stock -
BKF AR15 Enhanced M4 MOD-1 Combat Control Kit (LPK) (3.5lb-4.5lb)
$129.90 UPC: 81012454178136 in stock -
BKF M4 MOD-1 Stripped Upper Receiver – Tungsten Cerakote
$131.24Out of stock -
BKF M4 MOD-1 Stripped Upper Receiver – FDE Cerakote
$131.24Out of stock -
BKF M4 MOD-1 Stripped Upper Receiver – OD Green Cerakote
$131.243 in stock -
BKF M4 MOD-1 Stripped Upper Receiver – Burnt Bronze Cerakote
$131.242 in stock -
BKF M4 MOD-1 Stripped Upper Receiver – Sniper Grey Cerakote
$131.24Out of stock -
BKF M4 MOD-1 Stripped Upper Receiver
$140.3567 in stock -
BKF M4 MOD-1 Assembled Upper Receiver
$140.3567 in stock -
BKF M4 MOD-1 13″ M-LOK Handguard – FDE Cerakote
$147.70Out of stock -
BKF M4 MOD-1 13″ M-LOK Handguard – Burnt Bronze Cerakote
$147.70Out of stock -
BKF M4 MOD-1 13″ M-LOK Handguard – Midnight Bronze Cerakote
$147.701 in stock -
BKF M4 MOD-1 13″ M-LOK Handguard – OD Green Cerakote
$147.70Out of stock -
BKF M4 MOD-1 13″ M-LOK Handguard – Tungsten Cerakote
$147.704 in stock -
BKF M4 MOD-1 15″ M-LOK Handguard – Tungsten Cerakote
$155.821 in stock -
BKF M4 MOD-1 15″ M-LOK Handguard – Sniper Grey Cerakote
$155.82Out of stock -
BKF M4 MOD-1 Standard Power Combat Control Lower Build Kit (Nickel Teflon)
$176.71 UPC: 81012454262797 in stock -
BKF M4 MOD-1 Intermediate Power Combat Control Lower Build Kit (Nickel Teflon)
$185.71 UPC: 81012454266537 in stock -
BKF M4 MK1 5.56/223 Comp (10 Pack)
$208.7551 in stock -
BKF M4 MOD-1 Standard Power Combat Control Magpul SL Lower Build Kit (Nickel Teflon)
$241.21 UPC: 81012454290097 in stock -
BKF M4 MOD-1 Stripped Cerakoted Receiver Set – Midnight Bronze
$249.994 in stock -
BKF M4 MOD-1 Stripped Cerakoted Receiver Set – OD Green
$249.9911 in stock -
BKF M4 MOD-1 Stripped Cerakoted Receiver Set – Burnt Bronze
$249.9912 in stock -
BKF M4 MOD-1 Stripped Cerakoted Receiver Set – FDE
$249.996 in stock -
BKF M4 MOD-1 Intermediate Power Combat Control Magpul SL Lower Build Kit (Nickel Teflon)
$250.21 UPC: 81012454300637 in stock