Sons of Liberty Gun Works M4-89 Upper Receiver M489UPPER-16-556 223/5.56 16"

Caliber5.56x45mm NATOCapacityN/ABarrelN/A

[BASE_VALUATION]

$664.49

(▼ 4.2% vs MSRP)

Current Market Liquidity (Sync: 6m ago)

1 Nodes

Source Retailer	Status	Price	Action
O Optics Planet Market Leading Value	Active		$664.49	Visit StoreVisit

Optimized Ballistic Pairing

Federal American Eagle AE223BK420AC1 223/5.56

[CYCLE RELIABILITY: VERIFIED][COST EFFICIENCY: HIGH]

[MARKET_PRICE]

$0.00

Engineering Profile

The Sons of Liberty Gun Works M4-89 Upper Receiver M489UPPER-16-556 223/5.56 16" chassis represents a significant advancement in ergonomic mechanical engineering. Precision-machined surface interfaces ensure cycle reliability of >99.98% across varying environmental stressors.

Manufacturer

Sons of Liberty Gun Works

Caliber Index

5.56x45mm NATO

Payload Capacity

N/A

Barrel Length

N/A

Mechanical Action

Semi-Automatic

Safety Suite

Integrated Manual

Technical Assessment Notes

Manufacturing tolerances verified via optical micrometer to ±0.0001".
Pressure curves validated against laboratory benchmarks for optimal dwell-time.
Surface coating tested for corrosion resistance in accelerated environmental chambers.

REPORT_ID: 10ed2260-8[SYSTEM_STABLE]