[mtar15]

I have an SR9 that I purchased second (or 3rd, or 4th.....) hand. They forearm does not look like it's original and I suspect it's not HK. The trigger looks normal, except it has an X stamped on the hammer and ejector lever.

Any help identifying what each part is would be greatly appreciated.

Thanks in advance for any information.

 

[Dead_pool]

The handguard is the correct style for an SR9, but it should have a tiny recessed rectangle with 2 letters stamped into it somewhere . The 2 letters signify the year of manufacture.
The trigger group looks like HK, I’ve seen an X or other letters stamped on their trigger group parts before. I would say it’s probably also original .Unless your rifle is an SR9 T, or TC then it should have the PSG-1 trigger group with the MSG90 stock or PSG-1 stock.

 

[SudS]

Looks to be a G41 forearm. Lucky you, could be considered more desirable than a standard tropical forearm. Trigger pack looks good to me.

 

[mtar15]

Really appreciate the information!
Thanks