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Centurion Arms C4 5.56 Billet AR-15 Receiver Set - C4-B-SET vs Dirty Bird AR-15 Multi-Cal Forged Receiver SetReceiver Sets
Put receiver sets head to head to compare size, weight, and more.
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Featured Deal
$400.00
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Featured Deal
$159.95
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| Receiver Sets | Centurion Arms C4 5.56 Billet AR-15 Receiver Set - C4-B-SET | Dirty Bird AR-15 Multi-Cal Forged Receiver Set |
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| Summary | ||
| Rating |
Not Rated
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Not Rated
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| Rank | ||
| Weight | 9.504 oz | 0.0000 oz |
| Color | Black, FDE, Midnight Bronze, OD Green | |
| Details | ||
| Brand | Centurion Arms | Dirty Bird Industries |
| Prices | ||
| MSRP | $400.00 | $159.95 |
| Used Price | $280.00 | $111.97 |
| Sale Price | $360.00 | $143.96 |
Receiver Sets Descriptions
Centurion Arms C4 5.56 Billet AR-15 Receiver Set - C4-B-SET
Centurion Arms LLC, C4 5.56 Billet Receiver Set in 7075-T6 Aircraft Grade Aluminum Lower Receiver Specifications: – Precision CNC from billet 7075-T6 Aerospace aluminum – MIL-A-8625F, Type III, Class 2, Hard Anodized flat black finish or Cerakoted as per customers needs – Compatible with TDP/Mil standard AR lower receiver parts – Compatible with ambidextrous controls currently on the market (ambi selector and NORGON mag release) – Dimensional accuracy inspection – All sharp edges de-burred by hand – Pictograph selector markings properly marked for 90° safety – Multi Caliber marking for build versatility – Largest possible, flared, deep beveled magwell – Tensioning screw for proper upper/lower fit – Integrated trigger guard – All components, material, and packaging made in the USA – Weight: 9.5 oz Upper Receiver Specifications: – Precision CNC from billet 7075-T6 Aerospace aluminum – M4 feed ramps – MIL-A-8625F, Type III, Class 2, Hard Coat Anodized flat black finish or Cerakoted as per customer’s needs – Compatible with TDP/Mil Standard AR Upper Receiver Parts
Dirty Bird AR-15 Multi-Cal Forged Receiver Set
Dirty Bird Industries AR-15 Forged Multi-Cal Lower Receiver: Start with Quality Forgings All MCF-A lowers are machined from top-tier 7075 Aluminum Forgings from Cerro Fabricated Products. It is a common misconception that all forgings are created equal. Cerro Fabricated Products has been a leader in precision forging, machining, heat treating and more since 1915. Meticulous Machining We wanted perfection, so we teamed up with the folks at MVB Industries. MVB, best known for their innovative ARC-X PDW Stock, is one of the industries’ best kept secrets. And while we’d love to keep them all for ourselves, we can’t talk about the quality of this lower without giving huge props to their team. Lots of companies are known for their creative vision, others are known for their unwavering attention to detail. MVB does both, and they do it very, very well. A Quality-Control Centered Process You’ll notice that in addition to ATF issued serial numbers, all of the lowers feature a unique identifier machined near the pistol grip interface. This is for tracking each individual unit throughout the production process. This added step allows QC staff to trace any potential quality issues back to an exact machine and a given batch, no matter how long it has been since that unit was produced. Practical Improvements It is one thing to add features to a battle proven design that is over 60 years old. There are some pretty crazy lowers out there, but are they practical? Do they sacrifice reliability? Do they make the lower more difficult to service or upgrade? Self-Adjusting Receiver Tensioner The MCF-A utilizes a spring-loaded plunger to reduce slop between the upper and lower receiver. No more tension screws or accu-wedges. Dirty Bird Industries AR-15 Stripped Upper Receiver: The Dirty Bird Industries AR-15 Cerro Forged Stripped Upper Receiver is precision machined to M16/M4 Mil-Spec using top quality Cerro Forgings. They are then finished with a uniform Mil-Spec Type III hardcoat anodizing. These units are quality checked throughout the process to ensure consistent quality from unit to unit. Builders know that not all mil-spec forged upper receivers are created equal. Sub-par forgings suffer from pitting and structural defects, poor anodizing can result in a purplish or chalky finish that doesn’t last and sloppy matching can result in mis-sized lugs, burrs or other machine marks. You have Dirty Bird’s word that these uppers will be free from excessive pitting, machined to spec and finished with quality (not purple or chalky) hard coat anodizing. Features: 7075-T6 Aluminum Cerro Forgings M4 Feedramps .250 takedown pin holes Port Door (Dust Cover) and Forward Assist not included 100% American Made Dirty Bird Industries’ Limited Lifetime Warranty
