Description
PM Fixed Buffer Tube Stock
Your Grip. Our Stock. Built to Fit.
The PM Fixed Buffer Tube Stock is a purpose-built, made-to-order fixed stock for mil-spec AR-pattern platforms. It slides directly over the buffer tube, pairs with whatever grip you already run, and delivers real adjustability in a fixed-stock package.
This is not a compromise stock. It was built for shooters who want a fixed, featureless-compatible setup that still adjusts to their body and optic height — without forcing them into an integrated grip system or a one-size-fits-all geometry.
Your Grip. Your Choice.
Most fixed stocks in this category either replace your entire rear setup or lock you into an integrated design. The PM Fixed Buffer Tube Stock does neither.
It slides over your mil-spec buffer tube and works alongside whatever grip you already have on your lower — standard, ergonomic, featureless-compatible, or whichever grip fits your setup and your state’s requirements.
Your stock. Your grip. Your setup.
Adjustable Length of Pull
Length of pull is set through a 2-screw adjustment system. No specialized tools, no permanent commitment to a single LOP, and no ordering the wrong fixed size and living with it.
Set it to fit your body and gear, then lock it in. Adjust it again later if your setup changes.
- 2-screw LOP adjustment for practical fit tuning
- Fixed-stock format once installed and set
- Useful for multiple setups as optics, armor, clothing, or shooting position changes
Adjustable Cheek Riser
The PM Fixed Buffer Tube Stock uses the same adjustable cheek rest concept as the MSHS platform, allowing you to dial in cheek weld height for your optic setup.
- Red dot or iron sights: run it low
- LPVO or magnified optic: bring it up
- Night vision or tall mounts: run it at height
One stock, multiple optic setups, better alignment.
Carbon Fiber Rod Reinforcement
Two pultruded carbon fiber rods run through the body of the stock. This is not decorative. Pultruded carbon fiber rod is one of the stiffest structural reinforcements that can be embedded into a printed part.
The reinforcement helps resist flex, supports recoil load paths, and gives the stock a structural backbone beyond standard PC-CF printing alone.
- 2x pultruded carbon fiber rods embedded through the stock body
- Improved rigidity compared to printed polymer alone
- Reduced flex and creak under load
- Built for real support and repeatable handling
PC-CF Construction
The stock is printed in Priline PC-CF, a polycarbonate carbon fiber blend selected for stiffness, heat resistance, and functional durability.
- Stiffer than standard PLA or PETG
- Better heat resistance for range and field use
- Improved impact resistance under real handling conditions
- Matte charcoal gray finish from the natural PC-CF material
The result is a workshop-built printed stock that handles like a serious part, not a fragile prototype.
Integrated QD Sling Mount
A single integrated QD sling mount is built directly into the stock body. No aftermarket adapter, no extra hardware to track down, and no loose add-on mount.
Mount your sling directly to the stock at a natural carry point.
Compatibility — Read Before Ordering
The PM Fixed Buffer Tube Stock is designed for mil-spec buffer tubes only.
- Fits: mil-spec AR-15, AR-10, AR-9, and compatible AR-pattern lowers with a mil-spec buffer tube
- Does not fit: commercial-spec buffer tubes
Commercial-spec buffer tubes have a slightly larger diameter, and this stock will not seat correctly on them.
If you are unsure whether your buffer tube is mil-spec or commercial-spec, verify before ordering. Commercial-spec tubes are less common, but fitment should always be confirmed on your specific setup.
What’s Included
- 1x PM Fixed Buffer Tube Stock
- PC-CF construction in matte charcoal gray
- Adjustment hardware for length-of-pull setting
- Integrated QD socket
- Buttpad included as part of the stock assembly
- Adjustable cheek rest included as part of the stock assembly
Workshop Notes
This is a PM workshop product — printed, reinforced, assembled, and inspected by hand before shipping. It is made to order, not pulled from shelf stock.
Current lead time: 2–3 weeks from order confirmation.
If you have questions about fitment, compatibility, or lead time before ordering, reach out before you buy.
Disclaimer
Laws governing firearm accessories vary by jurisdiction and are subject to change. Always verify that your build configuration complies with current local, state, and federal regulations before purchase and installation. The buyer is responsible for lawful configuration and safe use of this product.
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