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Davidson Defense Rapid Drop 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit

Part Number: PI-P-556-63999
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On sale $159.99 $119.99
Retail Price:$159.99
Your Savings:$40.00(25%)
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Availability: In Stock

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Details

Davidson Defense RAPID DROP 7.5" Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit with Blemished Handguard

The Davidson Defense RAPID DROP 7.5" Pistol Upper Build Kit delivers precision-grade materials and compact dimensions for versatile AR-15 pistol configurations. Built around a 7.5-inch barrel crafted from 416R stainless steel with a polished finish and government profile, this kit features a 1:7 twist rate optimized for stabilizing heavier 5.56 NATO projectiles (62gr–77gr). The pistol-length gas system with micro low-profile gas block ensures reliable cycling in an ultra-compact package. A freefloat M-LOK handguard constructed from 6061-T6 aluminum provides lightweight accessory mounting, while the billet panhead upper receiver features an anodized finish for corrosion resistance and distinctive aesthetics. Note: This kit features a blemished handguard with minor cosmetic imperfections that do not affect function or performance. The kit includes a 1/2x28 TPI GI A2 flash hider and maintains full compatibility with standard AR-15 components. Ideal for builders seeking premium materials at a value price, this upper kit combines 416R stainless steel precision with modular design.

Key Features

  • 7.5" barrel made from 416R stainless steel with polished finish and government profile
  • 1:7 twist rate optimized for stabilizing heavier 5.56 NATO projectiles (62gr–77gr)
  • Pistol-length gas system with micro low-profile gas block for reliable cycling
  • Freefloat M-LOK handguard (blemished) made from 6061-T6 aluminum for lightweight accessory mounting
  • Blemished handguard features minor cosmetic imperfections that do not affect structural integrity, function, or performance
  • Billet panhead upper receiver made from 6061-T6 aluminum with anodized finish
  • 1/2x28 TPI GI A2 flash hider included for effective muzzle control
  • Standard AR-15 platform compatibility for seamless integration

Perfect For

  • Ultra-compact AR-15 pistol builds prioritizing maximum maneuverability
  • Vehicle storage and confined environments where minimal dimensions are critical
  • Budget-conscious builders seeking premium materials like 416R stainless steel at a value price
  • Shooters who value corrosion-resistant stainless steel construction
  • Gunsmiths and enthusiasts looking for a high-performance, compact platform

416R Stainless Steel Barrel with Government Profile

The 7.5-inch barrel features 416R stainless steel construction, delivering superior corrosion resistance and consistent accuracy compared to standard chrome moly barrels. The polished finish reduces friction and wear, while the government profile provides balanced weight distribution. The 1:7 twist rate offers aggressive stabilization ideal for heavier bullets—perfect for 62gr, 69gr, and 77gr loads. This combination delivers dependable terminal performance even in an ultra-short barrel configuration, making it a top choice for builders who refuse to compromise on material quality.

Blemished Freefloat M-LOK Handguard

The freefloat M-LOK handguard constructed from 6061-T6 aluminum eliminates barrel contact to preserve accuracy while offering a modern mounting platform for lights, grips, and sling attachments. This handguard is blemished, featuring minor cosmetic imperfections such as small scratches, finish inconsistencies, or surface marks that do not affect structural integrity, function, or performance. Its lightweight design maintains structural integrity without adding bulk, keeping the pistol nimble and responsive. The slim profile enhances ergonomics, making it comfortable for extended shooting sessions or rapid transitions. For builders seeking value without sacrificing functionality, the blemished handguard delivers the same mounting capability and performance as a first-quality unit at a reduced price.

Billet Panhead Upper Receiver Design

The billet panhead upper receiver sets this build apart with its precision-machined construction from 6061-T6 aluminum and distinctive aesthetic. Unlike forged receivers, billet machining allows for tighter tolerances and unique design elements. The anodized finish provides excellent corrosion resistance and wear protection, while the panhead design offers a clean, professional appearance that complements the polished barrel and minimalist gas block.

Ready for Custom Configuration

This upper kit arrives ready for integration with your choice of lower receiver, optics, and accessories. The micro low-profile gas block maintains a clean sight picture, while the M-LOK handguard gives you the freedom to configure accessories exactly how you need them. The 1/2x28 TPI threads accept the included GI A2 flash hider or allow for swapping to a compensator, brake, or suppressor mount. Whether you're building a dedicated vehicle gun or a versatile compact pistol, the RAPID DROP upper kit offers the modularity and performance serious builders demand.

Disclaimer: Follow all safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility with your lower receiver and components before purchase.


Specifications

Barrel: 7.5" AR-15 Pistol Barrel

Caliber: 5.56x45mm NATO

Barrel Length: 7.5 inches

Barrel Material: 416R Stainless Steel

Barrel Finish: Polished Stainless Steel

Barrel Twist Rate: 1:7

Barrel Profile: Government

Barrel Gas System Length: Pistol

Barrel Thread Pitch: 1/2x28

Handguard Style: Freefloat

Handguard Material: 6061-T6 Aluminum

Handguard Color: Black

Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider

Muzzle Thread Pitch: 1/2x28

Muzzle Device Finish: Manganese Phosphate

Gas Block: Micro Low-Profile Gas Block

Gas Block Size: 0.750 O.D

Gas Block Material: Steel

Upper Receiver: Panhead Billet Upper Receiver

Upper Receiver Material: 6061-T6 Aluminum

Upper Receiver Finish: Anodized

Charging Handle: Not specified


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