Description

This product is 100% Made in the USA! Our gas tubes, gas blocks and even roll pins are all proudly manufactured in the US. All Complete uppers are headspaced prior to shipping and test fired.

Includes:

• BKF Assembled Upper Receiver w/ T-Marks
• Parallax Tactical FFSSR 17.5″ Slim Profile M-LOK Handguard
• BKF 18″ 556 NATO SPR 1/7 Twist QPQ corrosion resistant 4150 Barrel in Nitride
• BKF Low Profile Gas Block and Rifle Length Nitride Gas Tube
• Product comes assembled
• No BCG or Charging Handle

BKF M4 Assembled Upper Features:

• M4 Feedramps
• 7075-T6 aluminum
• .250 takedown pin holes
• Laser engraved T-marks
• Thermal Fit Upper W/ Oversized Lugs for tight fitment with most receivers
• Type 3 Hard Coat Anodizing
• Made in the USA
• Forward assist and dust cover installed

Parallax Tactical 17.5″ Slim M-LOK

• Super Slim Profile (1.360″) inside diameter
• Lightweight design (10oz)
• Free Floated
• QD Swivel mounting holes at the 3 and 9 oclock positions at front and rear
• Picatinny rails at the 3, 6 and 9 oclock positions
• M-LOK Compatible
• Made in the USA!!!

Additional Barrel Info

Length – 18″

Material – 4150 Chrome Moly Vanadium

Profile – SPR

Finish – QPQ Corrosion Resistant

Gas System Length – Rifle

Gas Block Journal – .750″

Twist Rate – 1:7 inches

Muzzle – 1/2×28 Threaded

Weight – 41oz

PRODUCT SKU: BKF-M4M0-18-556-17.5-FFSSR