Does the Harrington & Richardson Retro M16A1 work with the PSA 5.56 Full-Auto Nitride MPI?

Harrington & Richardson lower and Palmetto State Armory bolt carrier group compatibility

Yes, they fit

The Harrington & Richardson Retro M16A1 Lowers works with the PSA 5.56 Full-Auto Nitride MPI. Our compatibility rules found no conflict between them.

Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.

Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.

Harrington & Richardson Retro vs PSA 5.56 Full-Auto Nitride MPI: specs and prices

Harrington & RichardsonPSA 5.56 Full-Auto Nitride
Best price$159.99 at Palmetto State Armory$89.99 at Palmetto State Armory
Stores0 of 1 in stock1 of 1 in stock
AssemblyStrippedn/a
PlatformAR-15n/a
Caliber5.56 NATOn/a
ColorGrayn/a
Cartridgen/a5.56 NATO
Stylen/aFull-Auto
Finishn/aNitride

Both for $249.98 at today's best prices.

Today's best prices and 90 day price history

Every store we track for each part, cheapest in stock first. Prices are checked through the day.

Harrington & Richardson Retro M16A1 Lowers

  • Palmetto State Armoryout of stock$159.99

PSA 5.56 Full-Auto Nitride MPI

Price history, last 90 days

  • Harrington & Richardson Retro M16A1: lowest $159.99 on Sep 4, highest $159.99 on Sep 4 over the last 90 days.
  • PSA 5.56 Full-Auto Nitride MPI: lowest $69.99 on Jul 31, highest $89.99 on Aug 11 over the last 90 days.