Drontheim – Complete Upper, no Forward Assist, 16″ 5.56 NATO 1:8 Barrel, 13.5″ M-LOK Handguard

$398.99

Drontheim Build Works

This complete upper features a smooth-side receiver without forward-assist, true to the original design by Eugene Stoner, combined with a 16 inch, 1:8 twist, 5R button rifled, QPQ-lined barrel, and 13.5 inch octagonal free-float M-LOK handguard.

Out of stock

SKU: DBW-SSR-556-16-108-135 Category: Tag:

(pictures forthcoming)

Description

This complete upper features a smooth-side receiver without forward-assist, true to the original design by Eugene Stoner, combined with a 16 inch, 1:8 twist, button rifled, QPQ-lined barrel, and 13.5 inch octagonal free-float M-LOK handguard.

Includes

Smooth-side upper receiver
• M4 feed ramps
• 0.250 takedown holes
• laser engraved t-marks
• installed port door with caliber marking

16″ 4150 Chrome-Molybendium-Vanadium barrel
• 1:8 twist
• gunner profile
• 4150 CMV Steel
• 5R button rifling
• mid length gas system
• 0.750″ low-profile gas block
• M4 barrel extension
• QPQ Nitride finish
• 1/2×28 muzzle threading
• 11-degree target crown
• A2 Flash Hider (unpinned)

10″ Octagonal free-float M-LOK handguard
• 6061-T6 Aluminum
• Black Hardcoat Anodized
• 1.35″ inner diameter
• full-length picatinny rail
• anti-rotation tabs
• 7-sided MLOK, for superior flexible mounting options

Note: This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons below.


To finish your build

Dimensions21.125 × 4.125 × 4.125 in

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