6 Lightest AR15 Stock Upgrades

There are many rifle stock options on the market, and some of them look very similar to another with great ergonomics. However the weight of them differ, which for AR15 builders who want the lightest component. Everything on the rifle can add weight, so builders pay close attention to what they put on their system with a purpose in mind, and stock component is one of them. 

This guide will help them decide which one to get instead of basing their buy decisions based on looks.

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Lightwest AR15 Stocks

Mission First Tactical BattleLink - Snag Free

mft stock
  • Weight: 5.8 oz
  • Material: Polymer

If you're after a tough and lightweight AR15 stock, I wholeheartedly suggest the Mission First Tactical AR15 Stocks. Designed for customization, they offer custom accessory mounts and optimized sling setups.

These stocks replace collapsible butt stocks seamlessly. They come with multiple sling slots for easy single-point mounting, and the quick-detach sling point suits ambidextrous shooters. The upper section improves cheek weld while keeping things ultra-light.

With an angled non-slip rubberized buttpad, these stocks ensure swift presentation, even with body armor. They fit snugly on the buffer tube for stability and a solid feel. Despite the open "L" shape, snagging risks are minimized.

Strike Industries Pit Stock - Best For PDW

  • Weight: 4 oz
  • Material:  6061 T6 alumimum

Required Buffer Tube - Strike Industries 7 Position Advanced Receiver Extension

If you're looking for the most minimalistic AR15 stock for a lightweight rifle, I'd highly recommend this one. It's not only adjustable and versatile with its 3-position setting, but it's also lighter than a standard m4 stock.

Plus, its slim and skeletonized design is perfect for those who prioritize a sleek look and reduced weight. Just a heads-up, ensure it's compatible with your setup, especially if you're using the Strike Industries 7 Position Advanced Receiver Extension.

Strike Industries Viper MOD 1 (MilSpec Only) - Best Overall

  • Weight: 6.6 oz
  • Material: Impact resistant polymer

If you're looking for a top-notch AR15 stock, I highly recommend the Viper MOD 1. It stands out from other popular options because of its lightweight design. Not only is it easy to install, but its thin profile ensures better control without adding unnecessary weight.

It's light and thin, making the stock easy to use without adding much weight. Even though it's only 0.36” thick, it still helps reduce the kick from the gun.  

The combination of strong TPE and a durable polymer frame offers both comfort and a solid shoulder rest. Trust me, once you try the Viper MOD 1, you'll see why it's a game-changer in the AR15 stock market.

Lead Star Ravage - Best For 3 Gun

lead star ar15 stock
  • Weight: 6 oz
  • Material: CNC 6061 T6 billet aluminum

If you're building a lightweight AR-15, I highly recommend the Ravage stock from Lead Star Arms. Crafted from a solid block of 7075 T6 aluminum, it's incredibly light at just 6 oz. This non-adjustable stock easily slides onto the buffer tube, and you just need to tighten a screw to secure it.

When paired with a carbine length buffer tube, the stock measures 9.5″ from the lower receiver to the butt pad. It even has a slot for sling attachment. Plus, its Type III Class 2 hard coat anodized finish is available in red, blue, and a shade that's between black and gray. You can find this top-notch stock on Lead Star Arms’ website for only $89.99.

LUTH-AR MBA 5 - Best For Precision Shooting

mba 5 stock
  • Weight: 3.8 oz
  • Material: Polymer

The MBA-5 Buttstock is designed for the AR-15 platform and serves as a direct replacement for the standard Carbine adjustable butt stock. It can fit both Commercial and Mil-Spec buffer extension tubes.

Unlike some other models, the MBA-5 has a straightforward design with a permanent butt plate and a built-in cheek rest. For quick and easy adjustments, it features a paddle-style lever.

In addition, the built in bag hook helps precision shooter to grip the shooting bag tight when shooting in prone positions.

BCM MOD 0 - Best For Fighting Rifle

bcm mod 1 stock
  • Weight: 7.5 oz
  • Material: Polymer

Bravo Company USA has released its new BCMGUNFIGHTER Stock after much anticipation and detailed testing. They claim it's the "strongest lightweight polymer stock" for mil-spec receiver extensions. This sets it apart in the industry due to its strength and lightweight nature.

Unlike some other stocks, it has a smooth design without sharp edges that could snag. Though it may seem bigger than designs like the Vltor IMod or Magpul CTR, it's actually lighter, weighing less than half a pound. Its locking lever is part of the stock's bottom front, giving it a distinct look.

This stock matches the length of most carbine stocks like the Vltor IMod and Magpul CTR. It's similar in width to typical carbine stocks that don't have side storage. The stock is very light but strong polymer stock weighing 7.5 oz. Smooth design without sharp edges.

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