The Timber Creek Outdoors Greyman Lower Parts Kit AR-Platform Black (Model GLPKBL, UPC 840253801234) is a premium, upgraded AR-15 lower parts kit designed for builders and shooters who want more than basic mil-spec. Part of Timber Creek’s Greyman series—“designed with the gunfighter in mind”—this kit features cross-hatch texturing, smoothed and rounded edges, and billet aluminum components that exceed standard specifications for durability, ergonomics, and control.
Perfect for your next AR build or lower receiver upgrade, the Greyman Lower Parts Kit – Black delivers a cohesive, high-quality control set that’s ready for hard use on any modern sporting rifle.
Premium AR-Platform Lower Parts Kit – Built for the Gunfighter
Timber Creek didn’t just repackage generic small parts—they redesigned the Greyman Lower Parts Kit from the ground up to improve on earlier designs:
Cross-hatch texture on key controls for a more secure grip
Smoothed and rounded edges to reduce snagging on gear and gloves
More parts made from CNC-machined billet aluminum, providing better strength and consistency than basic cast or stamped components
These improvements make the kit ideal for duty rifles, defensive builds, competition carbines, and serious training guns where reliability and control matter.
What’s Included – Core Controls & Hardware for Your AR Build
The Timber Creek Greyman AR-Platform Lower Parts Kit – Black includes the essential lower receiver components needed to complete or upgrade a mil-spec AR-15 lower (minus the fire-control group and a few furniture pieces):
From manufacturer and major retailers, this kit includes:
GM ambidextrous safety selector
GM AR takedown pins (front & rear)
GM magazine release button
Mil-spec bolt catch
Bolt catch plunger & roll pin
Buffer retention pin
Safety detent & spring
Magazine release spring & hardware
Takedown/pivot detents & springs
Trigger pins and all necessary small springs and pins to complete your lower
According to multiple product descriptions, this kit does not include a trigger, trigger guard, or pistol grip, allowing you to choose your preferred fire control group and furniture separately.
This makes the GLPKBL an excellent choice for custom builds where you want upgraded controls, but plan to add your own trigger, grip, and trigger guard.
CNC-Machined Billet Aluminum & Steel – Stronger Than Mil-Spec
One of the major advantages of the Greyman Lower Parts Kit is its material quality:
CNC-machined billet aluminum construction on key controls (such as the magazine release, safety selector, and takedown pins) maximizes strength and dimensional consistency.
Critical wear parts and springs are made from quality steel for longevity and reliable operation.
Corrosion-resistant finishes protect against rust, dirt, moisture, and debris, boosting reliability in adverse environments.
These enhancements help the kit exceed mil-spec standards, making it a step up from generic lower parts kits in both durability and smooth function.
Black Greyman Finish – Clean, Modern & Versatile
The GLPKBL variant is finished in Black, which is both classic and practical:
Color: Black – matches virtually any receiver, stock, and handguard finish
Blends perfectly with all other Greyman components (charging handles, dust covers, safety selectors, pins, and buffer tubes) if you’re doing a full Greyman build.
Ideal for tactical, duty, and minimalist builds where you want a clean, all-business appearance.
If you plan to build out a full Greyman AR-15, this Black lower parts kit is a natural foundation that complements Timber Creek Greyman buffer tubes, takedown pins, and other matching parts.
Compatible with Most Mil-Spec AR-15 Lower Receivers
The Timber Creek Greyman AR-15 Lower Parts Kit is designed as a drop-in kit for most mil-spec AR lowers:
Works with standard AR-15 / MSR lower receivers that follow mil-spec dimensions
Ideal for new stripped lowers, receiver sets, or refreshing older rifles
Perfect start for a modern sporting rifle (MSR) build, as multiple retailers describe this kit as “the perfect start to any MSR build.”
If you’re building from a stripped lower or upgrading a budget build, the GLPKBL offers a notable quality boost in the controls you use every time you run the rifle.
Designed With the Gunfighter in Mind – Better Ergonomics & Feel
Timber Creek emphasizes that the Greyman series is designed with the gunfighter in mind, and this lower parts kit reflects that philosophy:
Cross-hatch texturing provides better purchase on small controls (mag release, safety, etc.), especially under stress or with gloves.
Smoothed and rounded edges reduce the chance of snagging gear, clothing, or slings.
Ambidextrous safety selector improves control and accessibility for both left- and right-handed shooters, or when shooting from the support shoulder.
The result is a lower parts kit that not only functions reliably, but also feels better in the hand and runs smoother in tactical, defensive, or high-paced range environments.
Perfect for Custom Triggers & Premium Furniture
Because the GLPKBL Greyman Lower Parts Kit omits the trigger, trigger guard, and pistol grip, it’s particularly well-suited to:
Enthusiasts running aftermarket triggers (single-stage, two-stage, competition, or duty triggers)
Builders who want a specific pistol grip to match their ergonomics (Magpul, BCM, etc.)
Those planning to use a billet or Greyman trigger guard as a visual and ergonomic upgrade
This allows you to pair high-end fire-control parts with Timber Creek’s upgraded lower controls for a truly custom AR build.
Key Specifications – Timber Creek Greyman Lower Parts Kit AR-Platform Black GLPKBL
From manufacturer and retailer listings:
Brand: Timber Creek Outdoors
Series: Greyman
Product Type: AR-Platform Lower Parts Kit (excluding trigger, trigger guard, and grip)
Model / MPN: GLPKBL
UPC: 840253801234
Platform: AR-Platform / AR-15, mil-spec lower receivers
Color: Black
Construction:
CNC-machined billet aluminum controls (e.g., safety selector, magazine release, takedown pins)
Steel hardware, springs, and pins
Corrosion-resistant finishes
Includes:
GM ambidextrous safety selector
GM AR takedown pins
GM magazine release button
Mil-spec bolt catch
Bolt catch plunger & roll pin
Buffer retention pin
Takedown/pivot detents & springs
Safety detent & spring
Trigger pins and associated springs & pins
Does NOT Include:
Why Choose the Timber Creek Outdoors Greyman Lower Parts Kit Black GLPKBL?
Choose the Timber Creek Outdoors Greyman Lower Parts Kit AR-Platform Black GLPKBL (UPC 840253801234) if you want:
A premium AR-15 lower parts kit that exceeds mil-spec in materials and ergonomics
Upgraded, CNC billet aluminum controls with cross-hatch texture and smoothed edges
A black Greyman finish that pairs with any rifle and matches other Greyman components
A kit that is ideal for custom builds with your own choice of trigger, grip, and trigger guard
A drop-in lower parts solution designed with the gunfighter in mind, offering better control, durability, and reliability
For AR builders and shooters who demand more than generic parts, the Timber Creek Greyman Lower Parts Kit – Black GLPKBL is a smart, high-quality foundation for any serious AR-15 lower receiver build.
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