AR-15 5.56/.223 16" stainless steel straight fluted tactical upper assembly

Product Code:MAR-556-16-STRAIGHT
Availability:In Stock
  • $249.95

  • $399.95

Available Options

5.56 NATO/.223 Wylde

AR-15 5.56/.223 16" stainless steel straight fluted tactical upper assembly

AR-15  5.56/.223 16" stainless steel straight fluted tactical upper assembly features a 16 inch 416R stainless steel hbar contour barrel, hardened to 26-32 RC and stress relieved. This is a chamber that is rated for 5.56 NATO and has a 1-9 right-hand twist, button rifled for precision. There are .750 under gas block spaces and the barrel is straight fluted. The barrel ends in 1/2-28 threads and is completed with a muzzle brake and crush washer for added durability and recoil reduction. The barrel has M4 feed ramps for improved feeding reliability. 

The A3 flat top upper receiver is made from certified 7075-T6 aluminum forgings, an aerospace-grade material known for its high strength-to-weight ratio. It's anodized with a black hardcoat to government specifications for added corrosion resistance. Forward assist and a dust cover are already installed and the receiver also includes M4 feedramps. 

The gas system consists of a low profile, .750 gas block that is made from steel and black hardcoat anodized for resistance to harsh environments. A carbine-length gas tube is used in this setup. 

Handguard - 12" mid-length handguards are free-floating and have MLOK compatibility, a modern mounting system for accessories. These are also made from aircraft-grade aluminum and black hardcoat anodized for durability and resistance to harsh conditions.

Please note -  Does not come with BCG and CH. Images may not be an exact representation of the product.

More Ammo 09/14/2020

I bought this, and selected Keymod hand guard, but got the MLok instead. No big deal, I just had to adjust the accessories to the "T" nuts for MLok. It came cleaned and oiled, which is a rarity. I checked the gas tube, and the gas tube was even clean and clear of debris. Very impressed. Solid, well built, and looks great. Haven't been to the range yet but under initial scrutiny, this upper passes with flying colors. Smooth operation of the charging handle, and BCG, so no issues. Very good build.

More Ammo 09/06/2020

Ordered this with a Keymod handguard, but got the MLok instead. No big deal really. Very well made upper, and solid. Very pleased.

More Ammo 09/06/2020

I totally understand the insane demand for parts these days has everyone scrambling to fulfill orders as best as possible. I ordered this with a Keymod handguard, but received it with an MLok handguard. No big deal. Anyway, this is a very good upper, and is built very well. No complaints whatsoever. Very happy with the end result.

Richard 09/30/2019

This is a high quality upper. What a great time to be building AR’s. The price point on these are really unbelievable. Accuracy is top notch. Great product!

Paul 07/12/2015

Awesome product at a great price!

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Tags: ar-15, 5.56/.223, 16", stainless, steel, straight, fluted, tactical, upper, assembly 16" 16"

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