There has been some talk on the Internet of the Keltec RFB being “difficult” to suppress.
I tried the RFB with a 762SDN (available to dealers at SHOT Show) and it worked like a champ, both with Flash Hider and Muzzle Brake. The one with the Flash Hider worked at setting “34″ and the one with the Muzzle Brake worked perfect at setting “21″.
For those that don’t know what a Keltec RFB is, it’s a 8.1 lb 7.62 Bullpup that takes Metric FAL magaines, has an 18″ barrel, is 26″ overall and has a pretty good trigger for a Bullpup.
With the 762SDN, the RFB measured 33″ overall and weighted in at 9.7lb empty (minus optic). Let me repeat that for you, a 7.62mm 18″ barreled Rifle that with a Silencer is 33″ overall length.