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AR Buttstock | Adjustable & Fixed AR-15 Stocks
AR Buttstock – Adjustable & Fixed Buttstocks for AR-15 Rifles
Looking to upgrade your rifle with a reliable and comfortable AR Buttstock? Whether you're optimizing your AR-15 for tactical precision, lightweight maneuverability, or range comfort, Mounts Plus offers a wide selection of mil-spec and commercial AR buttstocks to match every shooter’s style.
We stock only high-quality stocks from trusted brands like Magpul, B5 Systems, Daniel Defense, UTG PRO, and Hera Arms, available in adjustable, fixed, and minimalist configurations.
✅ Why Choose the Right AR Buttstock?
The buttstock is more than just a rear-end attachment—it’s a performance-defining component that directly impacts:
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🎯 Shooting Accuracy – A proper cheek weld and length of pull enhances shot consistency
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🔧 Customization – Adjust for body size, armor, or shooting position
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🧱 Durability – Withstand recoil, drops, and wear with rugged polymer or aluminum designs
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💪 Comfort – Reduce fatigue during extended shooting sessions
Choose an AR buttstock that improves both control and confidence every time you shoulder your rifle.
📊 Compare Our Best-Selling AR Buttstocks
| Product Name | Type | Tube Spec | Price |
|---|---|---|---|
| Magpul MOE Fixed Carbine Buttstock | Fixed | Commercial | $33.45 |
| B5 Systems Collapsible Precision Stock (CPS) | Adjustable | Mil-Spec | $230.00 |
| Daniel Defense Collapsible AR Buttstock | Adjustable | Mil-Spec | $92.00 |
| Hera Arms HRS Light AR Buttstock | Fixed | Mil-Spec | $59.90 |
| Seekins Precision ProComp 10X AR Stock | Precision | Mil-Spec | $159.00 |
Need help choosing? Contact our experts for AR buttstock recommendations.
🔩 Types of AR Buttstocks We Offer
🔹 Adjustable AR Buttstocks
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Multi-position designs
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Best for tactical builds and law enforcement
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Fast length-of-pull adjustments on the fly
🔹 Fixed AR Buttstocks
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Rock-solid stability
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Ideal for precision shooting or retro builds
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Often lighter and more affordable
🔹 Minimalist & Lightweight Stocks
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Compact profiles for maneuverability
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Great for home defense and CQB setups
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Shave ounces off your rifle
🛠️ AR Buttstock Compatibility Guide
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✅ Mil-Spec Buffer Tubes (1.14”) – Compatible with most collapsible AR stocks
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✅ Commercial Buffer Tubes (1.17”) – Slightly larger; match with commercial stocks only
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✅ Fixed Stocks – Typically require rifle-length buffer tubes or A2 extensions
Always check your buffer tube diameter before selecting a new AR buttstock.
❓ Frequently Asked Questions (FAQs)
What is the difference between a mil-spec and commercial AR buttstock?
Mil-spec tubes are slightly smaller and used in military and high-end builds. Commercial tubes are larger and not interchangeable with mil-spec stocks.
Can I install an AR buttstock on any rifle?
As long as your rifle uses a compatible buffer tube, yes. Most modern AR-15s are ready for either fixed or collapsible buttstocks.
Is an adjustable AR buttstock legal?
Yes, adjustable buttstocks are legal on AR-15 rifles. Check state laws if converting pistol platforms.
What’s the most comfortable AR buttstock?
The B5 Systems Bravo and Magpul CTR are popular for comfort and recoil control due to ergonomic design and rubber butt pads.
🛒 Shop AR Buttstocks at Mounts Plus
Mounts Plus is your trusted source for premium AR buttstocks and AR-15 parts. We offer:
✅ Adjustable, Fixed, and Precision Stocks
✅ Mil-Spec & Commercial Compatibility
✅ Lightweight & Tactical Options
✅ Top Brands at Competitive Prices
✅ Fast U.S. Shipping & Support