SD Mod 5 9mm Upper Receiver 6in M-LOK Complete Black
$460.45 at OpticsPlanet · 3 stores
In stock Sale
Harrington & Richardson Retro 635 10.5" 9mm Complete Upper, 1/10 Twist, Gray
Harrington & Richardson · Upper Receiver
No ratings yetBest price
$659.99at Palmetto State Armory
checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Palmetto State Armory | $659.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Palmetto State Armory | $659.99 | $659.99 | $659.99 |
Since Sep 28, 2026.
About this part
The Harrington & Richardson Retro 635 10.5" 9mm Complete Upper, 1/10 Twist, Gray is an AR-9 complete upper receiver from Harrington & Richardson. One store lists it, Palmetto State Armory at $659.99.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
- Barrel length
- 10.5" · Handguards
Specifications
- Manufacturer
- Harrington & Richardson
- Color
- Grey
- Type
- Complete
- Platform
- AR-9
- Caliber
- 9mm
From the manufacturer
Harrington & Richardson Retro 635 10.5" 9mm Complete Upper, 1/10 Twist, Gray
Similar upper receiver
Rating
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