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HK 416 HANDGUARD FREE FLOAT M-LOK Reviews & Ratings

The Heckler & Koch HK416 rifle is well-known for its quality and performance capabilities, especially given its use by U.S. armed forces in recent years. However, the commercial market has exploded with M-LOK accessory attachments, and the Midwest Industries HK 416 Free-Float M-LOK Handguard enables owners of this battle rifle to take advantage of these recent additions to the firearms world. The Midwest Industries HK 416 Free-Float M-LOK Handguard is machined from durable 6061 aluminum and features a hard-coat anodized finish in black that protects against damage in rugged environments. The cross-bolt on the handguard is made from heat-treated 4140, which is finished in a phosphate coating.

Available in 9-inch and 13.5-inch length
Provides seven sides of M-LOK attachment slots
Weight: 9.9 or 14 ounces, depending on model
Includes one M-LOK Picatinny rail

The Midwest Industries HK 416 Free-Float M-LOK Handguard installs with the factory barrel nut and is completely made in the USA.

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Good, ergonomic, but some machining required...

I got a BRN-4 upper (10.4in) and mated it to a JP-15 complete lower, and noticed right away that the front pivot pin was binding. I ended up having to have 30mils ground off the back of the hand guard, or it would exert force on the pivot pin tabs on the lower receiver. Once that was done, and it was re-blackened, it worked like a charm. Maybe Midwest should send them from the factory this way. The HK416 upper was, after all, meant to operate with legacy M4 lowers. Otherwise I would have given 5 stars.

Would you recommend this? Yes, I would recommend to a friend

by Philip P. on September 16, 2024

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Not the best

Handguard will slide forward 2mm after few rounds. I tried to crank 10 ft/lb on the bolt like Midwest instructed, but the bolt head just snap and had to return the handguard. It serve its job as a decent handguard if you don't mind the handguard slide forward 2-3mm.

by Duy on May 11, 2024

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Was this review helpful? 6

WARNING: Requires cutting rings off gun

Surprised to find installation of this rail, which is described as for an HK416, would require sawing/grinding off both of the 416s sling loops/rings.