The Franklin Armory DFM Bolt Catch AR-15 – Black Polymer 0050051BLK (UPC: 818725010941) is a purpose-built lower receiver part engineered to work seamlessly with Franklin Armory DFM™ fixed magazines on AR-15 platforms. Designed to closely mimic a standard AR-15 bolt catch—but with a crucial modification—this DFM-specific version removes the follower protrusion, allowing the DFM magazine to be installed and used without interference while maintaining familiar controls and ergonomics. Franklin Armory+2TLO Outdoors+2
If you’re building or upgrading a DFM-compliant AR-15, this lightweight, black polymer bolt catch offers a clean, simple solution that integrates directly into your lower parts setup.
Key Features – Franklin Armory DFM Bolt Catch 0050051BLK
Purpose-Built for DFM™ Fixed Magazine Configurations
While it visually resembles a standard AR-15 bolt catch, the Franklin Armory DFM Bolt Catch is specifically engineered for DFM magazine setups. The key difference is the removal of the follower protrusion—the small projection that normally contacts the magazine follower to lock the bolt open after the last round. Performance Triggers+4Franklin Armory+4Ammunition Depot+4
This modification:
Creates clearance for the Franklin DFM magazine, making installation and removal straightforward
Helps prevent unwanted interference between the bolt catch and fixed-mag follower
Preserves the overall bolt catch profile, so it still fits and feels like a standard AR control
For shooters using Franklin’s drop-in fixed magazine system, this bolt catch is the companion part that makes the configuration work smoothly.
Lightweight Black Polymer Construction
The DFM Bolt Catch is made from durable black polymer, offering a lighter-weight alternative to traditional steel catches while still maintaining strength where it counts. Blackstone Shooting Sports+4KYGUNCO+4Impact Guns+4
Benefits of the polymer construction include:
Reduced weight on your lower receiver parts set
Corrosion resistance, ideal for rifles exposed to sweat, humidity, or harsh environments
A non-reflective black finish that matches most modern AR-15 receivers and controls
Smoother interaction with adjacent components, helping to minimize wear
It’s a smart material choice for a component designed to complement a compliance-oriented fixed-magazine system.
Familiar AR-15 Geometry – Easy Integration & Handling
Even with its internal modification, the Franklin Armory DFM Bolt Catch retains the overall geometry and footprint of a standard AR-15 bolt catch. Elevated Arms LLC+3Franklin Armory+3KYGUNCO+3
That means:
Standard-style mounting in the AR-15 lower receiver using the usual bolt catch pin and spring
A familiar paddle profile for manipulating the catch during clearing and handling
Straightforward integration into most mil-spec-style AR-15 lowers that accept standard bolt catches
If you already know how a typical AR bolt catch feels and operates, this DFM version will feel right at home—just tailored for DFM magazines.
Optimized for DFM Magazine Installation
Multiple product listings emphasize that the DFM Bolt Catch’s core purpose is to allow easy installation of the Franklin Armory DFM magazine. Elevated Arms LLC+4Franklin Armory+4Ammunition Depot+4
Key functional advantages:
No follower protrusion to snag or bind on the DFM mag
Less chance of hang-ups or misalignment when inserting or removing the fixed magazine (as designed within compliant configurations)
A streamlined internal profile focused on compatibility and smooth operation
For builders and armorers setting up DFM systems, this part helps ensure the magazine and bolt catch are working together, not fighting each other.
Ideal for Compliant & Fixed-Mag AR-15 Builds
The DFM Bolt Catch is especially attractive for shooters building compliance-focused AR-15 configurations that rely on fixed magazines in certain jurisdictions (always check and follow your local laws). Retailers describe it as a “purpose-built solution for compliant magazine configurations on AR-15 platforms.” TLO Outdoors+2Ammunition Depot+2
Use cases include:
AR-15 builds using Franklin Armory DFM magazines as part of a fixed-magazine system
Rifles where simplified magazine installation is a priority
Custom setups where lowering internal interference between bolt catch and magazine is beneficial
While the DFM Bolt Catch is tailored to DFM mags, it keeps the external function of an AR catch familiar and intuitive.
Quick Specs – Franklin Armory DFM Bolt Catch AR-15 Black Polymer
From Franklin Armory and leading retailers: Elevated Arms LLC+6Franklin Armory+6Ammunition Depot+6
Brand: Franklin Armory
Product: DFM Bolt Catch – AR-15
Platform: AR-15
Compatibility: Designed for use with Franklin Armory DFM Magazine
Material: Polymer
Finish / Color: Black
Type: Bolt Catch / Lower Receiver Part
Manufacturer Part Number: 0050051BLK (00-50051-BLK)
UPC: 818725010941
SEO-Focused Summary
If you’re searching for Franklin Armory DFM Bolt Catch AR-15 Black Polymer 0050051BLK 818725010941, this component is the dedicated bolt catch designed to work with Franklin Armory DFM fixed magazines on AR-15 rifles. Featuring a modified AR-15 bolt catch design with the follower protrusion removed, black polymer construction, and direct compatibility with DFM magazines, the Franklin Armory DFM Bolt Catch is a lightweight, reliable upgrade for builders and shooters setting up DFM-compliant AR-15 configurations and looking for smoother magazine installation and clean, integrated functionality. Performance Triggers+4Franklin Armory+4TLO Outdoors+4
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