Harrington & Richardson Retro 604 "Air Force" Complete Upper Receiver, 1/12 Twist, Gray
All Harrington & Richardson upper receivers2 options
- Standard, this page
- Blemfrom $699.99, in stock
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Harrington & Richardson
Overview
The Harrington & Richardson Retro 604 "Air Force" Complete Upper Receiver is a fully assembled unit designed for 5.56 NATO caliber, featuring a rifle-length gas system that ensures reliable cycling and performance. With a 1:12 twist rate, this upper is optimized for stabilizing lighter projectiles, making it a solid choice for a variety of shooting applications. This upper receiver is often found in retro builds or those aiming to replicate classic military configurations.
Specifications
Harrington & Richardson Retro 604 "Air Force" Complete Upper Receiver, 1/12 Twist, Gray
2 options
- Standard, this page
- Blemfrom $699.99, in stock
Available Merchants(1)
Prices checked
Price Alert
Price and stock
Availability is good for the Harrington & Richardson Retro 604 "Air Force" Complete Upper Receiver, 1/12 Twist, Gray: it was in stock at one retailer or another nearly every day in September 2026, and today the one retailer we track has it in stock. Prices barely moved in September 2026, holding around $719.99, so there haven't been real sales lately. Buying today, the lowest price is $719.99 at Palmetto State Armory, which matches the best price we saw in September.
Prices checked · refreshed daily across 37 retailers
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