AR-15 STRIPPED UPPER RECEIVER 691821744312

SKU: 830735
Manufacturer part number: 691821744312
UPC: 691821744312
Availability: Out of stock
Old price: $172.99
$136.49

AR-15 Stripped Upper Receiver — Mil-Spec 7075-T6 Forged — Hardcoat Anodized Black — Standard M4 Feed Ramps — UPC 691821744312

Build your AR the right way from the top down with a Mil-Spec AR-15 Stripped Upper Receiver. Forged from tough 7075-T6 aluminum and finished in a durable Type III hardcoat anodized black, this receiver is the ideal foundation for reliable 5.56/.223, .300 BLK, and other AR-15 caliber builds. Featuring M4 feed ramps, a flat-top Picatinny rail, and industry-standard dimensions, it’s ready to pair with your favorite barrel, handguard, and BCG for a custom rifle or pistol that runs hard and stays accurate. (UPC: 691821744312)

Why This Stripped Upper is a Smart Choice

  • Mil-Spec forged strength: 7075-T6 forging delivers superior rigidity versus cast or 6061 receivers, supporting better barrel alignment and long-term durability.

  • Hardcoat anodized: Type III Class 2 black anodizing resists wear, scratches, and the elements across high round counts and tough range days.

  • M4 feed ramps: Improved cartridge presentation helps reduce misfeeds with modern magazines and a wide range of bullet profiles.

  • True flat-top rail: 1913 Picatinny top rail for rock-solid mounting of red dots, LPVOs, irons, and night-vision/thermal bridges.

  • Tight, consistent fit: Machined to Mil-Spec tolerances for reliable mating with most quality AR-15 lower receivers.

  • Build it your way: Compatible with common free-float handguards, standard ejection port doors, forward assists, and barrel nuts.

Key Specs (At a Glance)

  • Platform: AR-15 (5.56 NATO / .223 Rem, .300 BLK, and similar AR-15 cartridges)

  • Material: 7075-T6 aluminum, forged

  • Finish: Type III hardcoat anodized (black)

  • Rail: 1913 Picatinny, flat-top

  • Feed Ramps: M4

  • Dust Cover / Forward Assist: Not included (stripped receiver)

  • Takedown/Pivot Lugs: Standard AR-15 pattern

  • Barrel Nut Threads: 1-1/4"-18 tpi (Mil-Spec)

  • UPC: 691821744312

  • Configuration: Stripped upper only (no BCG, no charging handle, no ejection port kit)

What “Stripped” Means (and What You’ll Add)

This product ships bare—you’ll add:

  • Ejection port cover kit

  • Forward assist assembly (if desired; some builders prefer slick-side)

  • Barrel + gas system (carbine/mid/rifle or pistol length to match your caliber)

  • Handguard + barrel nut (free-float or drop-in)

  • Charging handle + BCG (caliber-appropriate)

  • Muzzle device and any suppressor mounts (where legal)

Build Tips & Compatibility

  • Calibers: Works with standard AR-15 cartridges—5.56/.223, .300 AAC Blackout, 6.5 Grendel (Type II), 6mm ARC, 7.62×39 AR, etc. Confirm bolt, barrel extension, and mags for your caliber.

  • Handguards: Most free-float M-LOK®/KeyMod/Picatinny rails will fit; verify barrel nut specs and torque values.

  • Barrel extension: Designed for M4 feed ramp extensions—match your barrel extension style for best reliability.

  • Gas system: Choose the correct gas length for your barrel; tune with buffer/spring for suppressed or specialty loads.

  • Fitment: Pairs with most Mil-Spec AR-15 lowers. Minor finish differences between makers are normal.

Installation Guidance (Quick Overview)

  1. Verify parts & tools. Use a quality upper receiver vise block, torque wrench, and proper armorer’s tools.

  2. Install forward assist & ejection port cover (if using).

  3. Seat and torque barrel to spec (commonly 35–80 ft-lb; follow barrel nut manufacturer instructions).

  4. Align gas system and install handguard per manufacturer directions.

  5. Add charging handle and BCG, then test function with snap caps.

  6. Head to the range to confirm zero and reliability with your preferred ammo.

Pro Tip: For precision builds, use a quality barrel, trued face, and torque procedure; consider bedding the barrel extension (non-permanent) to enhance repeatability.

Real-World Advantages You’ll Notice

  • Consistent zero: Rigid 7075 forging and proper torque keep optics tracking true through heat and recoil.

  • Reliable feeding: M4 ramps and correct geometry reduce stoppages with modern magazines.

  • Modularity: From a light home-defense carbine to a suppressed .300 BLK pistol or SPR-style 5.56, this upper adapts to your mission.

Care & Maintenance

  • Wipe anodized surfaces with a silicone cloth; avoid harsh abrasives.

  • Inspect barrel nut, handguard, and gas block screws after first range session.

  • Keep the BCG properly lubricated; clean the chamber extension and feed ramps as part of regular maintenance.

Safety & Compliance

  • Follow all federal, state, and local laws regarding rifle/pistol configurations, barrel length, stocks/braces, and suppressors.

  • Use only quality, SAAMI-spec ammunition appropriate to your barrel and bolt.

  • Ensure correct headspace when mixing components from different brands.

What’s in the Box

  • AR-15 Stripped Upper Receiver — 7075-T6 forged, hardcoat anodized, M4 feed ramps (UPC 691821744312)

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Start your build with confidence. This AR-15 Stripped Upper Receiver delivers Mil-Spec fit, 7075-T6 strength, and a durable hardcoat finish—the reliable backbone for your next custom AR.

"The End"

Products specifications
CategoryParts
ManufacturerSons OF Liberty Gun Works
SubCategoryUppers
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