R8R - RMR Mount
**These parts are IN-STOCK. We process and ship orders once every 1 to 2 weeks depending on order volume. Please do not place an order and then expect a shorter shipping window - If you need to make sure your R8R will ship within a certain timeframe, please reach out to us ahead of time.**
Introducing our first non-Star Wars and non-replica part, the MachineCraft R8R. The R8R is a low-profile RMR footprint optic mount built specifically for S&W R8 and TRR8s. This mount utilizes the tapped holes on top of the barrel shroud meant for the OEM 1913 rail, eliminating the need for removing the rear sight to mount a red dot. The R8R is precision machined from 7075 T6 Aluminum and Type III Hard Coat Anodized.
Includes:
1x R8R Mount
4x 8-36 Mount Screws
NOTE: This mount will only fit S&W R8's and TRR8's and is only designed to fit optics that utilize an RMR footprint. R8 and TRR8 in the photos are for demonstration purposes only. Some newer R8R units may have reversed orientation of laser engraved logos; These logos are completely covered with an optic installed and this will not affect functionality of the mount in any way.
We have tested the following optics and confirmed compatibility:
- Trijicon RMR Type 2
- Trijicon RMR HD
- Trijicon SRO
- Trijicon RCR
- Holosun 507c
- Holosun 507 Comp
- Holosun 507 Comp (Ronin)
- Holosun 508T
Excellent product. Great finish and perfect fit to the S&W R8 revolver. Looks strong enough. Significantly decreases the RMR height compared to the original picatini rail. Does not co witnesses with the iron sights.
The fit and finish of this mount it great! I've put about 200 rounds through the gun with no issues! I mounted the Holosun 509T with no problems! I did blue loctite the screws. If he decides to makes a direct mount for the Holosun 509T I would buy another in a heartbeat!
Machine Craft Replicas’ R8R RMR mount for the Smith & Wesson TRR8 is exactly what you want if you’re running an RMR on that platform. Fitment is excellent, it seats solidly to the top rail with zero detectable play. Machining and anodizing are clean and consistent, matching the TRR8’s lines rather than looking tacked-on.
Performance wise it holds zero through multiple range sessions (including heavy .357 loads) and keeps the optic low for a natural sight picture. Installation is straightforward with good quality hardware included, basic tools are all you need and the screws torque up without fuss.
It doesn’t add unnecessary bulk or interfere with controls, and the overall profile stays sleek. It isn’t cheap, but for precise fit, durability, and peace of mind when shooting hot loads, it’s worth the price. Highly recommended for TRR8 owners wanting a rock solid RMR solution.
Well made, fits perfectly. Love the personalized service. Thank you very much!
Beautiful and functional, what more could you ask for?
