The LE901-16SE Spring Pin (Part IDs 96906 / MS16562-117 / 95214) is a precision small-part component designed for builders, armorers, and maintenance professionals who demand reliable retention hardware for the Colt LE901-16SE platform and compatible assemblies that specify this spring pin size and standard. When you’re servicing a rifle, replacing a missing pin, or completing a correct parts list for a factory-style build, the right spring pin matters—because the smallest hardware often plays the biggest role in keeping critical components aligned, secured, and functioning as intended.
If you’re searching for an LE901-16SE spring pin, MS16562-117 spring pin, or the correct replacement for 96906 / 95214, this is the part engineered to match the specification and restore proper retention where it counts.
What is a spring pin—and why it’s essential
A spring pin (often called a roll pin) is designed to provide secure, vibration-resistant retention in mechanical assemblies. Unlike solid pins, spring pins use their inherent tension to stay seated in a properly sized hole, helping resist loosening under repetitive movement and recoil forces.
In firearm platforms—especially modern rifle systems—spring pins are commonly used anywhere designers need:
Consistent retention without threaded fasteners
Resistance to vibration and repeated cycling forces
Compact, low-profile hardware that won’t back out easily
Dependable alignment between mating components
When the correct spring pin is missing, damaged, or deformed, you can see issues like sloppy fit, inconsistent alignment, or hardware working loose over time. Replacing it with the correct spec pin is the right way to restore factory-style performance.
Built to spec: MS16562-117 standard compatibility
This product is identified as MS16562-117, a military standard designation commonly used to define spring pin dimensions and requirements. Matching the correct MS spec is critical because “close enough” pins can create real problems:
Incorrect diameter can cause poor retention or damage the hole
Incorrect length can interfere with moving parts or fail to secure the assembly
Inferior materials can deform during installation or under load
The LE901-16SE Spring Pin, MS16562-117 is intended to provide the proper fit and retention characteristics associated with that specification—helping you maintain correct assembly integrity and long-term reliability.
Correct replacement for multiple part identifiers
Parts catalogs and armorer lists often reference the same item under different identifiers. This spring pin is associated with:
LE901-16SE Spring Pin
96906
MS16562-117
95214
That’s especially helpful when you’re cross-referencing a schematic, a maintenance log, or a vendor listing. If you have any of these part numbers on your build sheet, this is the matching component.
Ideal for armorers, builders, and maintenance work
Small pins are easy to overlook—until you need them. This spring pin is a practical solution for:
Routine maintenance and refurbishment
Replacing lost pins during disassembly or cleaning
Restoring factory-correct hardware for LE901-16SE builds
Armorer bench stock for quick turnaround repairs
Correcting fitment issues caused by bent or undersized pins
It’s an especially smart purchase if you keep a spares kit for your rifle platform, since spring pins are among the most commonly replaced small parts during long-term ownership.
Installation tips and best practices
Because spring pins rely on correct fit and tension, installation quality matters. For best results:
Use a proper roll-pin starter punch and roll-pin punch for controlled seating
Support the work area to prevent flex or marring
Drive the pin straight and evenly—avoid angled installation
Replace pins that show deformation rather than reusing them repeatedly
Confirm the pin is fully seated and does not interfere with nearby components
If you’re not experienced with armorer-level assembly, professional installation is recommended to avoid damaging receivers, housings, or precision holes.
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The bottom line
When you need the correct small-part hardware to keep an LE901-16SE assembly secure and aligned, the LE901-16SE Spring Pin (96906 / MS16562-117 / 95214) is the right spec-matched replacement. It’s a simple component with an outsized impact—supporting dependable retention, correct fit, and the confidence that your build or repair is done the proper way.
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