My Cart: 0 item(s)
SIG MPX Accessories – Handguards, Triggers, Stocks & More
SIG MPX Accessories – Stocks, Triggers, Handguards & More
Take your SIG MPX to the next level with premium accessories trusted by professionals and competitive shooters. At Mounts Plus, we offer the top-performing SIG MPX accessories designed to enhance accuracy, reliability, and ergonomics — whether you're building a PCC race gun, a home defense SBR, or a tactical patrol carbine.
Our curated collection includes drop-in triggers, M-LOK handguards, folding stocks, 1913 stock adapters, charging handles, rail kits, optics mounts, and more — all optimized for SIG MPX Gen 1 and Gen 2 platforms.
🛒 Top-Rated SIG MPX Accessories Available Now
| Product | Type | Price |
|---|---|---|
| Timney MPX Drop-In Trigger | Fire Control | $237.99 |
| MPX M-LOK Handguard (8.5", 14", 16") | Rail System | $204.64 |
| Minimalist Folding Stock – MPX/MCX | Stock & Adapter | $221.81 |
| 1913 Stock Hinge Kit | Stock Adapter | $93.51 |
| SIG MPX Charging Handle Upgrade | Controls | $64.00 |
🔧 Compatible with all factory MPX receivers using 1913 rear interfaces and standard trigger groups.
✅ Why Upgrade Your SIG MPX?
-
🎯 Boost Accuracy & Speed – Drop-in triggers reduce pull weight and reset time
-
🧱 Improve Ergonomics – Slim handguards and vertical grips enhance weapon control
-
🔩 Modular Customization – M-LOK rails let you mount lights, slings, and accessories
-
🔧 No Gunsmithing Needed – Most parts install with factory hardware
-
🛠️ Built for Competition or Duty – Trusted by 3-Gun, LEO, and defensive shooters
🏷️ SIG MPX Accessories by Category
🔫 Stocks & Stock Adapters
-
Folding and minimalist stocks with 1913 rail compatibility
-
Adjustable LOP for tactical or compact configurations
🎯 Triggers & Fire Control
-
Timney drop-in triggers for smooth pull and crisp break
-
Fast reset ideal for PCC and defensive builds
🔧 Handguards & Rail Systems
-
Free-float aluminum M-LOK handguards in multiple lengths
-
Slim, lightweight designs to reduce front-end bulk
🧲 Charging Handles & Controls
-
Ambi charging handles, extended bolt catches, and enhanced safety levers
👁️ Optic & Sling Mounting Solutions
-
Picatinny risers, QD sling mounts, 45-degree offsets
🔍 SIG MPX Compatibility & Installation
All accessories on this page fit:
-
✅ SIG MPX Gen 1 and Gen 2
-
✅ MPX K, SBR, PCC, and Carbine variants
-
❌ Not compatible with MCX or Copperhead receivers
🛠️ Use standard tools for most installs. For triggers, no modification is required.
📚 Frequently Asked Questions (FAQ)
Q: Will these accessories fit my MPX K or PCC?
A: Yes. Our MPX accessories are compatible with Gen 1 & Gen 2 MPX platforms including K, PCC, and SBR.
Q: Is installation tool-free?
A: Most items (like handguards, triggers, and stocks) are drop-in or use standard Allen tools. No gunsmithing required.
Q: What’s the best trigger upgrade for SIG MPX?
A: The Timney MPX drop-in trigger is the most popular, offering a 3.5 lb pull and fast reset.
Q: Can I install a folding stock on my MPX pistol?
A: Yes, if using a 1913 adapter. Ensure you follow NFA guidelines for SBR classification.
🔗 Related MPX Parts & Upgrade Guides
📖 Looking to optimize your entire platform? Check out our MPX build guides and accessory reviews.