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AR-15Mid-Range

KE Arms

KE Arms / Brownells WWSD 2020 Rifle

Legacy lightweight WWSD 2020 rifle built around the KP-15 polymer lower, carbon-fiber M-LOK handguard, 16-inch pencil mid-length barrel, SLT-1 trigger, PDQ ambidextrous bolt release, and JP Silent Capture Spring.

Key Highlights

  • Ultra-lightweight at about 5 lbs
  • KP-15 polymer lower with integral stock
  • SLT-1 trigger on the WWSD 2020 configuration
  • PDQ ambidextrous bolt release

Specifications

Price
$1,700
Weight
5 lb
Calibers
5.56x45mm, .223 Rem
Rail Type
mlok

Capability Profile

0-10 Scale Across 8 Axes

Compatibility Tags

family: modern-riflefamily: ar-patterntrigger: ar-fcginterface: picatinny-tophandguard: mlokbarrel: longmag-type: stanag

Overview

The What Would Stoner Do (WWSD) 2020 rifle represents a fascinating thought experiment turned reality: what would AR-15 designer Eugene Stoner create if he had access to modern materials and manufacturing? Developed through collaboration between InRange TV, Forgotten Weapons, Russell Phagan of KE Arms, and Brownells, the WWSD challenges conventional AR-15 design by asking which features are truly necessary. The result is a rifle that weighs just 5 pounds unloaded - nearly 2 pounds lighter than standard AR-15s - while maintaining the reliability and accuracy expected from a fighting rifle.

The heart of the WWSD is the revolutionary KP-15 polymer lower receiver with integral fixed stock. Unlike add-on polymer parts, the KP-15 was designed from the ground up as a complete unit, resulting in a structure that's both lighter and stronger than trying to replicate traditional designs in plastic. The lower features modern improvements including an optimized magazine well for PMAGs and D-60 drums, improved pistol grip angle and texture, ambidextrous PDQ bolt release, and M-LOK slots plus QD sockets in the stock. The 16-inch pencil profile barrel uses a mid-length gas system, and notably, there's no forward assist - a feature Stoner himself removed from his later designs.

The WWSD philosophy extends to the component selection: a lightweight pencil barrel provides adequate accuracy without unnecessary weight, carbon fiber handguards save ounces while providing M-LOK mounting, the JP Silent Capture Spring eliminates buffer rattle, and the SLT-1 Sear Link Trigger provides a crisp pull. Testing shows the rifle is remarkably easy to handle thanks to the light weight and excellent balance. At its original $1,699.99 MSRP, the WWSD was never the cheapest AR-15, but it represented a genuine rethinking of the platform rather than just another parts combination. Treat it as a legacy or limited-availability WWSD 2020-style rifle; later WWSD 2021/Rekluse variants should be modeled separately when exact SKU evidence is available.

Key Features

  • KP-15 polymer lower with integral fixed stock
  • Ultra-lightweight 5 lbs unloaded weight
  • 16" pencil profile barrel with mid-length gas system
  • Carbon fiber M-LOK handguards for weight savings
  • Ambidextrous PDQ bolt release lever
  • JP Silent Capture Spring system for smooth operation
  • SLT-1 Sear Link Trigger with crisp pull
  • No forward assist - following Stoner's later design philosophy

Pros

  • +Exceptionally lightweight at 5 lbs - 2 lbs lighter than standard ARs
  • +Beautifully balanced despite light weight
  • +KP-15 lower designed from scratch, not adapted design
  • +Thoughtful modern improvements like optimized mag well
  • +Manageable recoil despite lightweight construction
  • +Represents genuine innovation rather than parts assembly

Cons

  • Limited compatibility with standard AR parts (special buffer, FCG)
  • Fixed stock - no length of pull adjustment
  • Takedown pins not captured, can be lost
  • Early production had overgassed barrel issues (corrected)
  • Polymer construction concerns for some traditional users
  • Non-standard design limits some upgrade paths

Detailed Specifications

caliber
5.56 NATO / .223 Rem
Barrel Length
16 inches
Overall Length
~42.1 inches / 1,070 mm
weight
5 lbs (2.25 kg) unloaded
Gas System
mid-length
Twist Rate
1:7 on reviewed Faxon-barrel WWSD 2020 examples
barrel
16-inch pencil-profile barrel
handguard
Carbon fiber M-LOK free-float
trigger
KE Arms SLT-1 Sear Link Trigger on WWSD 2020; Rekluse appears on later WWSD 2021 lower variants
stock
Integral fixed KP-15 polymer stock
boltCarrier
Young Manufacturing chrome bolt carrier group on WWSD 2020 documentation
sights
None; optic-ready Picatinny rail
sku
BRD111025
msrp
$1,699.99 original U.S. MSRP

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