So how does this rifle compare to something like the FAMAE?
I know Bartok has one so his input would be appreciated
Yes I know the FAMAE costs a fair bit more then what the MK3 does but curious as to his opinion on the matter
Well, if we're talking the FAMAE SG540, they both share the 5.56mm cartridge, but that's about where the similarities end. The FAMAE is a Long-Stroke Piston system, adopted from the AK47 and the Stg44 before it. It has an adjustable Gas Block with 2 settings. The R18 Mk3 uses a Short-Stroke Piston system, more akin to the M1 Carbine and popular today on AR180-derivative carbines such as the SIG MCX. It is the MCX that the Mk3 specifically gets the design of its captive internals from, with a direct lineage through the Mk2 back to the AR180B. The Mk3 uses a Self-Regulating Gas Block, which "sips" as much gas as is needed to reliably operate the system and vents the excess.
The FAMAE is sheet steel construction with a workmanlike epoxy-based painted finish over parkerizing. The R18 Mk3 is Type 3 Hardcoat Anodized T7075 Aluminum Alloy with Melonited steel components. Both surface treatments are durable enough in their own right.
The FAMAE is somewhat heavier than the R18, when simillarly equipped with an Arken 1-8x LPVO. The FAMAE takes proprietary Mags unless fitted with a conversion system, whereas thee Mk3 accepts STANAG Mags. I am not sure how sturdy and reliable the FAMAE STANAG Mag conversion is, as many are made of 3D-printed plastic. The propriertary polymer Mags of the SG540 are very well made, however they are expensive and difficult to source in Canada.
The ergonomics of the R18 match those of the SG-540 only if the R18 is retrofitted with an aftermarket Ambi Selector Switch and Mag Release. therwise, the controls of the FAMAE are ambi aside from the Charging Handle. Both Rifles are side-charging, however the R18 Mk3 follows Western convention and places the Charging Handle (CH) on the Left whereas the FAMAE puts it AK-style on the Right. The R18 has an adjustable buttstock for Length of Pull (LOP), whereas the stock SG-540 has a fixed LOP. An adapter is available for the SG540 to use a Zhukov folding/adjustable Buttstock or a factory Folding Buttstock can be sourced. Either route is going to be expensive ($250 for the Zhukov Stock and $150 for the Adapter) wiith the factory Folding Buttstock in particular being extremely rare and pricey on the resale market ($400+).
The R18 Mk3 has a far superior Trigger in the Triggertech Duty cassette that comes standard. The FAMAE Trigger can be tuned so that it functions as a 2-stage trigger, however there is no way to adjust the heavier Trigger Pull Weight of the SG540.
Finally (at least for now), the R18 Mk3 can make good use of the vast AR15 aftermarket for selected parts (eg. Extractors, Ejectors) and accessories (Lights, lasers, grips) with its extensive 7-columns of 2, 3, 5, 6, 7, 9, and 11 O'Clock MLOK slots. In addition, the Mk3 has a full-length Picatinny Top Rail for the mounting of Optics and Laser designators. The FAMAE is extremely limited in terms of aftermarket support and there is virtually nothing on the open market in Canada that will fit the rifle aside from the aforementioned Mag Conversion "Kit" and the occsional (expensive) MLOK Handguard. The FAMAE makes use of a removable, Receiver-length Picatinny Top Rail for Optics mounting.
At the end of the day? I can't tell you which is the "better" platform as I have yet to test-fire the R18 Mk3. My FAMAE is dead-nuts reliable, with zero issues aside from its violent and erratic, AK-like Brass ejection. It is a 2 MOA rifle with 69gr or 75gr factory match ammo and more like 2.5-3 MOA with bulk 55gr PMC Bronze. Extensive live-firing will determine whether the pre-production R18 Mk3 rifle is a solid design or not. I strongly suspect that it will function just fine, given that the operating system and its component parts are all proven in other military and civilian firearms. R18 Mk3 Accuracy is yet to be determined, but is warrantied to be 2.5 MOA with Bulk ammo.
Live-fire testing of the 25x Pre-Production Test Rifles will re-start just as soon as SAI receives properly toleranced (proprietary) Bolts from its Canadian sub-contractor. My Accuracy and Reliability testing will comence at the same time. Results will be passed along in a new thread under the title "R18 Mk3 - Part 2 Performance Review" (or words to that effect).
