Unless you're truly humping this rifle around in the field I'd roll with the current stick or purchase the piston driven MARS-H. The APC is typical swiss build quality but just as heavy. I run a SCAR 17S (gas jet + trigger needed) with zero issues suppressed/unsuppressed in the field and it's more accurate than it should be. Weight was the primary consideration and it excels there. A can change, think HUXWRX/OSS, would be a less expensive option to reduce backpressure and any performance issues you might be getting with the DI system.