300 BLK Complete Uppers
Ar15 300 BLK Complete Uppers – B. King’s Firearms
Showing all 70 results
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Pin & Weld Flash hider/Brake
$42.50$30.0081 in stock -
ADD Custom Single Color Cerakote – 1 piece
$75.00$35.0035 in stock -
ADD Custom Single Color Cerakote – 2 pieces
$100.00$65.009 in stock -
ADD Headspaced AR15 Toolcraft BCG and Charging Handle – Black Nitride
$99.99$89.99in stock -
BKF AR15 Enhanced Magpul MOE Lower Build Kit + BCG/Charging Handle
$239.99$169.99in stock -
BKF AR15 7.5″ 300 Blackout 1/7 Twist 4150 Steel Barrel W/ 7.25″ Slim M-LOK Rail W/ KAK Micro Flash Can
$254.99$174.992 in stock -
BKF AR15 Enhanced SB Mini Pistol Lower Build Kit + BCG/Charging Handle
$209.99$174.9928 in stock -
BKF AR15 Enhanced Magpul SL Lower Build Kit + BCG/Charging Handle
$249.99$179.99in stock -
BKF AR15 7.5″ 300 BLK 1/7 Twist 4150 Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can
$259.99$189.994 in stock -
BKF AR15 Enhanced MOD-1 SOPMOD Lower Build Kit + BCG/Charging Handle
$269.99$189.99in stock -
BKF AR15 7.5″ 300 BLK 1/8 Twist 4150 Heavy Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can
$259.99$199.99Out of stock -
BKF AR15 10.5″ Heavy 300 BLK Pistol length 1/8 Twist Barrel W/ 9.875″ FFSSR M-LOK Handguard
$254.99$204.99Out of stock -
BKF AR15 10.5″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.875″ FFSSR M-LOK Handguard
$254.99$204.99Out of stock -
BKF AR15 Enhanced SBA3 Pistol Lower Build Kit + BCG/Charging Handle
$249.99$204.995 in stock -
BKF AR15 10.5″ 300 BLK 1/8 Twist 4150 Heavy Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can
$269.99$219.993 in stock -
BKF AR15 10.5″ 300 BLK 1/7 Twist 4150 Heavy Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can
$269.99$219.99Out of stock -
BKF AR15 16″ 300 Blk 1/8 Twist 4150 Barrel W/ 15.5″ FFSSR M-LOK Rail
$309.99$224.994 in stock -
BKF AR15 16″ 300 BLK Heavy 1/8 Twist Barrel W/ 17.5″ FFSSR M-LOK Rail W/ KAK Flash Can
$329.99$229.993 in stock -
BKF AR15 8.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)
$329.99$229.991 in stock -
BKF AR15 9.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)
$329.99$229.993 in stock -
BKF AR15 8.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim M-LOK Handguard (Ballistic Advantage)
$304.99$236.992 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim M-LOK Handguard (BKF W/ Pinned Gas Block)
$350.74$242.994 in stock -
BKF AR15 10.5″ 300 BLK Pistol Length 1/7 Twist Barrel W/ 9.25″ Slim M-LOK Handguard (BKF W/ Pinned Gas Block)
$356.49$247.993 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (BKF W/ Pinned Gas Block)
$379.49$247.993 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)
$329.99$249.995 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)
$329.99$249.99Out of stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (BKF W/ Pinned Gas Block)
$379.49$249.997 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim M-LOK Handguard (BKF W/ Pinned Gas Block)
$379.49$249.9910 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 9.25″ Slim M-LOK Handguard W/ KAK Micro Flash Can (BKF W/ Pinned Gas Block)
$379.49$259.996 in stock -
BKF AR15 10.5″ 300 BLK Pistol Length 1/8 Twist Gunner Barrel W/ 9.25″ Slim M-LOK Handguard (Faxon)
$309.99$267.992 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.25″ Slim M-LOK Handguard (BKF W/ Pinned Gas Block)
$356.49$268.995 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.25″ Hybrid M-LOK Handguard (BKF W/ Pinned Gas Block)
$356.49$268.995 in stock -
BKF AR15 8″ 300 BLK 1/7 Twist 4150 Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
$309.99$269.992 in stock -
BKF AR15 7.5″ 300 Blackout 1/8 Twist Gunner Barrel W/ 7.25″ Slim M-LOK Rail W/ KAK Micro Flash Can (Faxon)
$299.99$269.991 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 11.625″ Slim M-LOK Handguard W/ KAK Flash Can (BKF W/ Pinned Gas Block)
$379.49$274.9910 in stock -
BKF AR15 7.5″ 300 BLK 1/8 Twist Gunner Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can (Faxon)
$299.99$279.992 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 9.875″ FFSSR M-LOK Handguard W/ KAK Flash Can (BKF W/ Pinned Gas Block)
$379.49$279.99Out of stock -
BKF AR15 10.5″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.875″ FFSSR M-LOK Handguard (BKF W/ Pinned Gas Block)
$356.49$287.99Out of stock -
BKF AR15 16″ Govt 300 BLK Pistol length 1/7 Twist Barrel W/ 15.5″ FFSSR Handguard (Ballistic Advantage)
$324.99$289.994 in stock -
BKF AR15 10.5″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.875″ FFSSR M-LOK Handguard (Ballistic Advantage)
$309.99$289.99Out of stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 11.5″ FFSSR M-LOK Handguard W/ KAK Flash Can (BKF W/ Pinned Gas Block)
$379.49$289.995 in stock -
BKF AR15 10.5″ 300 BLK 1/7 Twist 4150 Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can (BKF W/ Pinned Gas Block)
$367.99$291.995 in stock -
BKF AR15 10.5″ 300 BLK 1/7 Twist 4150 Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
$319.99$294.99Out of stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Midwest Combat Handguard (BKF W/ Pinned Gas Block)
$448.49$309.995 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Midwest G3M Handguard (BKF W/ Pinned Gas Block)
$448.49$309.994 in stock -
BKF AR15 10.5″ 300 BLK 1/8 Twist Nitrided Gunner Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can (Faxon)
$399.99$314.992 in stock -
BKF AR15 10.5″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.5″ Midwest Combat Handguard (BKF W/ Pinned Gas Block)
$448.49$339.995 in stock -
BKF AR15 MOD-1 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Midwest G3M Handguard (BKF W/ Pinned Gas Block)
$563.49$359.994 in stock -
BKF AR15 MOD-1 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 10.5″ Midwest SP Handguard (Suppressor Ready)
$563.49$364.995 in stock -
BKF AR15 MOD-1 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 10.5″ Midwest SP Handguard (Suppressor Ready)
$563.49$364.995 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel W/ 9.5″ Midwest Combat Handguard (BKF W/ Pinned Gas Block)
$459.99$369.995 in stock -
BKF AR15 MOD-1 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ 12.625″ Midwest SP Handguard (Suppressor Ready)
$574.99$369.995 in stock -
BKF AR15 MOD-1 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ 12.625″ Midwest SP Handguard (Suppressor Ready)
$574.99$369.995 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 12.625″ Midwest SP Handguard (Suppressor Ready)
$574.99$369.994 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 15″ Midwest SP Handguard (Suppressor Ready)
$574.99$379.995 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK13 Handguard (BKF W/ Pinned Gas Block)
$574.99$399.995 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK13 Handguard (BKF W/ Pinned Gas Block)
$574.99$399.995 in stock -
BKF AR15 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK13 Handguard (BKF W/ Pinned Gas Block)
$574.99$399.994 in stock -
BKF AR15 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK14 Handguard (BKF W/ Pinned Gas Block)
$574.99$399.995 in stock -
BKF AR15 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK14 Handguard (BKF W/ Pinned Gas Block)
$574.99$399.995 in stock -
BKF AR15 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK14 Handguard (BKF W/ Pinned Gas Block)
$574.99$399.994 in stock -
BKF AR15 MOD-1 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK8 Handguard (BKF W/ Pinned Gas Block)
$689.99$429.995 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK14 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK14 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK14 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK13 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 9″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK13 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 8″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK13 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK8 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock -
BKF AR15 MOD-1 10.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ Geissele MK4 Handguard (BKF W/ Pinned Gas Block)
$689.99$449.995 in stock