Cryptic RKM -.458 SOCOM / .450 Bushmaster Master Repair Kit Manganese Phosphate
$51.99 at OpticsPlanet
In stock Sale
Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Manganese Phosphate
No ratings yetBest price
$57.52at OpticsPlanet
Out of stock Sale checked Nov 10, 2026
In stock now instead
- Cryptic RKM -.458 SOCOM / .450 Bushmaster Master Repair Kit Man… $51.99at OpticsPlanet
- Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Mysti… $70.99at OpticsPlanet
- Geissele Standard Lower Parts Kit with Grip $57.80at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $57.52Salechecked Nov 10, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
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This part is out of stock at every store we track. These similar lower parts are in stock, with today's prices.
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Price history
Dashed line = out of stock. Tracking since Oct 23, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $57.52 | $57.52 | $57.52 |
Since Oct 23, 2026.
About this part
The Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Manganese Phosphate is an AR-15 lower part from Cryptic. One store lists it, OpticsPlanet at $57.52.
Specifications
- Manufacturer
- Cryptic
- Type
- Kit
- Platform
- AR-15
From the manufacturer
Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Manganese Phosphate. 308 WIN / 7.62x51mm / 6.5 Creedmoor); Chrome Firing Pin; Firing Pin Retaining Pin; Ejector; Ejector Spring; Ejector Roll Pin; Gas Rings (3) Specifications for Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit: Manufacturer: Cryptic Caliber: 5.56x45mm NATO .300 AAC Blackout Package Contents: Cryptic .233 / 5.56 / .300 AAC Blackout Master Repair Kit Cryptic CC-RKM-0104: .233 / 5.56 / .300 AAC Blackout Master Repair Kit Manganese Phosphate
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