VLTOR: M1S M14/M1A Improved Modstock

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***DISCLAIMER*** We will only be shipping this item via UPS, please do not select Priority Mail as your shipping method. (Exceptions can ONLY be made for PO Box Adresses). If Priority Mail is selected and your order contains this item your shipping method will be changed to UPS Ground & additional shipping charges may be applied.

While our original M14/M1A Stock System has been the essential upgrade to the Springfield SOCOM platform, we saw huge areas of improvement. The stock system is now formed with VLTOR’s proprietary mold and is manufactured with a proprietary carbon fiber composite. This makes the stock system stronger and lighter than ever before. The stock is adjustable for five lengths of pull and adjusts for elevation. In its lowest position the stock will allow for the use of iron sights or the stock can be raised up to 1.25″ higher for use with mounted optics. This stock system features an improved magwell relief that allows for easier operation of any M14/M1A magazine. The buttstock is slightly wider and longer at the toe than a regular M4 stock with a noticeable negative pitch, making transitions from the ready position feel more natural.

The VLTOR Improved Modstock chassis is made to military specifications. There is a large amount of variation in the commercial SAI receivers, including variation in the height of the rear heel in the receivers. It is possible that you may experience a minor heel gap with your commercial receiver. The proper way to fix this heel gap is to build up the back of the stock by way of bedding. For this reason, we offer a “raw” version of our Improved Modstock chassis that is uncoated and features a bare carbon composite surface. If you plan on bedding the chassis for accuracy purposes, or to guarantee a lack of heel gap, you may consider purchasing the “raw” variation of the chassis to expedite the bedding preparation process. After bedding the stock, you may coat the stock portion of the chassis in a coating of your choosing. **Please note** Any bedding or modification of the chassis will void your factory warranty. For additional information please email TechSupport@Vltor.com

The M1-S Stock system comes included with: carbon fiber composite fore end, pistol grip assembly, buttstock adapter, and VLTOR EMOD buttstock.

*The VLTOR CASV-14 handguard system and Vltor ModPod bipod set are sold separately*


  • Lightweight
  • Drop-in installation
  • Proprietary mold and carbon fiber composite specific to VLTOR
  • Stock adjusts for 1.25″ in elevation
  • Comes in a choice of four colors: Black, FDE/Tan, Foliage Green, or Raw
  • Waterproof side battery compartments that holds (4) CR123 or (3) AA batteries in each compartment
  • Weatherproof compartment in the clubfoot area of the stock that hold two AA  batteries
  • Comes pre-assembled with carbon fiber composite forend, pistol grip, stock adapter and VLTOR EMOD buttstock
  • Buttstock is impact and temperature resistant polymer, specifically blended for VLTOR stocks
  • Matte (anti-reflection/anti-glare) finish
  • Has standard military and quick disconnect swivel socket accessible from both sides
  • Available in Semi-Auto (M1-SS) or Select Fire (M1-SF)

  • Weight of stock system: 2lbs 13oz
  • LOP fully collapsed: 11.50 inches
  • LOP fully extended: 14.75 inches
  • Buttpad angle: -5 degrees with decrease to -15 at toe

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