Trying to run Silencerco Spectre 9 boosterless on Sig P226, but it hits guide rod
I bought this Spectre 9 mainly for .38 Special out of a lever gun (which is stupid quiet and fun, BTW), but I thought I'd also experiment with running it boosterless on my P226, since it's so light. I have a Silencerco threaded barrel and a Silencerco Alpha 1/2-28 direct thread mount (stainless steel, but maybe an ounce?). But the can interferes with the guide rod, just barely but enough that I wouldn't dare fire it in this configuration. Apparently crush washers increase the risk of baffle strikes, so that's out. Should I:
- Get a 1/2-28 thread extension (like This One); not keen on this since it says it's for the Glock 43 and I'm worried it would interfere with the slide of the Sig. Also more weight, which is the enemy for boosterless
- Grind 1/8" off the end of my guide rod (seems risky; it's that length for a reason)
- Order one of these from Kaw Valley. It has an offset that seems like it would fix my problem, but it's 6061 aluminum so I'm leery about its strength. I'm OK with aluminum, but I'd feel better if it was 7075, like this Ecco Machine adapter , but I haven't seen that in stock for months
- Get a Silencerco fixed barrel spacer for the piston housing that came with the suppressor. Seems like the safest option, but also the heaviest (maybe too heavy to run boosterless?) TIA
EDIT: u/JoeLikesMP5s was kind enough to send me one of his spare ECCO 7075 aluminum 1/2-28 Alpha mounts, which solves the guide rod interference issue (as expected). Entire assembly is 4.4oz, so I'm optimistic it'll cycle, but I won't have a chance to shoot it for a couple weeks. https://imgur.com/OFf2XbS