Two New Ways to Modernize Your AR Platform
The AR platform has evolved far beyond the traditional buffer tube. As modern firearms continue moving toward compact, modular designs, shooters are looking for cleaner, stronger, and more adaptable rear-end configurations. The XTS 1913 buffer tube adapter system from XTS solves that problem.
The XTS 1913/FLDA Folding Buffer Tube to Picatinny Adapter and the XTS 1913/FIXD Fixed Buffer Tube to Picatinny Adapter allow shooters to convert compatible firearms from a traditional AR-style receiver extension to a standard 1913 Picatinny rear interface, opening the door to an entirely new world of stocks, braces, and modular accessories.
Whether you’re building a lightweight truck gun, a compact PCC, a modern hunting rifle, or simply upgrading your favorite platform, these adapters provide a clean and durable solution.
Why Convert to a 1913 Interface?
The 1913 Picatinny rear mounting system has quickly become one of the most popular attachment standards in the firearms industry.
Instead of being locked into a traditional AR buffer tube, shooters gain access to a wide range of folding stocks, braces, minimalist stock systems, skeletonized designs, and future accessories built around the Picatinny interface.
The result is a rifle that can become:
- More compact for transportation
- Easier to store
- More configurable
- Better balanced
- Ready for future upgrades
Many modern firearm platforms no longer rely on a traditional AR buffer tube for operation. Firearms with self-contained recoil systems can often take advantage of Picatinny-mounted stocks without affecting reliability. The key is confirming compatibility with your firearm’s operating system before installation.
Meet the XTS 1913/FLDA
Folding Buffer Tube Adapter
For shooters wanting maximum portability, the XTS 1913/FLDA is the ultimate upgrade.
Once installed, the integrated folding mechanism allows the attached stock or brace to fold neatly alongside the firearm, dramatically reducing its overall footprint.
Perfect for:
- Backpack guns
- Truck rifles
- PCC builds
- Compact range setups
- Storage in tight spaces
Unlike bulky aftermarket solutions, the XTS adapter maintains a streamlined appearance while providing a solid lock-up in both the open and folded positions.
Whether your rifle spends time in a vehicle, safe, or range bag, the folding design makes transportation significantly easier.
Meet the XTS 1913/FIXD
Fixed Buffer Tube Adapter
Not every shooter wants a folding mechanism.
Some simply want the clean appearance and modularity of a 1913 interface without adding moving parts.
That’s exactly where the XTS 1913/FIXD shines.
The fixed adapter creates a rigid Picatinny mounting point while eliminating unnecessary weight and complexity.
Ideal for:
- Precision rifles
- Competition builds
- Lightweight carbines
- Duty-style firearms
- Permanent stock installations
If strength, simplicity, and reliability are your priorities, the FIXD delivers exactly that.
Built for Serious Use
Every component in the XTS adapter series was engineered with durability in mind.
Constructed from precision-machined aluminum and finished with a durable black hard-coat anodized finish, these adapters are built to withstand demanding field conditions while maintaining a clean, professional appearance.
The precision machining helps eliminate unwanted movement while providing consistent alignment between your firearm and mounted stock.
Whether you’re running your rifle on the range every weekend or carrying it in the field, these adapters are designed to keep up.
Endless Configuration Options
One of the biggest advantages of converting to a Picatinny rear interface is flexibility.
Once installed, your firearm can accept an enormous variety of compatible accessories including:
- Folding stocks
- Skeletonized stocks
- Lightweight aluminum stocks
- Adjustable braces
- Compact PDW-style systems
- Future 1913-compatible accessories
Instead of replacing your entire firearm, a simple adapter opens up countless possibilities for customization.
As more manufacturers continue adopting the 1913 standard, your rifle becomes more future-proof with every new accessory released.
Cleaner Lines. Modern Appearance.
Beyond functionality, there’s no denying the visual impact.
A traditional buffer tube works well, but today’s shooters often prefer a cleaner, more modern profile.
The XTS adapters give rifles a purpose-built appearance that feels at home alongside modern chassis systems, PCC platforms, precision rifles, and contemporary sporting firearms.
It’s an upgrade you’ll notice every time you pick up your rifle.
Is It Right for Your Build? XTS 1913 buffer tube adapter
The XTS 1913 adapter series is an excellent choice for shooters building:
- Modern AR conversions
- PCCs
- Hunting rifles
- Precision rifles
- Truck guns
- Backpack firearms
- Competition rifles
- Lightweight range builds
Before purchasing, always verify that your firearm’s operating system supports removing the traditional buffer tube. Standard direct impingement AR-15 rifles require the buffer tube as part of their recoil system, while many piston-driven or self-contained systems can support a rear 1913 conversion when designed for it.
Why Choose XTS?
At XTS, every product is developed with the same philosophy:
Practical performance. Clean engineering. Real-world reliability.
The new 1913 adapter lineup continues that tradition by giving shooters the flexibility to build rifles exactly how they want them.
Whether you prefer the compact convenience of the 1913/FLDA or the streamlined simplicity of the 1913/FIXD, both adapters deliver the strength, precision, and modularity today’s firearm enthusiasts expect.
Available Now at Backwood Sports – XTS 1913 buffer tube adapter FLDR and FIXD
The newest XTS adapters are now available through Backwood Sports.
If you’re ready to modernize your firearm, reduce overall size, or expand your customization options, the XTS 1913/FLDA Folding Adapter and XTS 1913/FIXD Fixed Adapter are two upgrades you’ll appreciate every time you hit the range.
Explore both models today and discover how a simple rear-end conversion can completely transform your next build.