2 questions for a T-21 build

[Qikstart[501st]]

I've started a T-21 build with long-term aspirations of getting my first suit, a TD. But the T-21 is easier to do short term and doesn't require as many funds  

 

I have 2 questions:

 

1) Looking at Lewis gun reference pictures, I know there were versions both with and without the "cleaning kit" tube in the butt stock. Is there a generally accepted opinion on whether or not this was present in ANH? I've tried staring at screen caps and paused video but I can't make it out and haven't seen any photoshopped pics definitely showing if it's present or not. I did check the CRL and it's not called out as being required for any level of certification.

 

2) Can anyone provide a (preferably US) link to where they purchased their barrel ribs? I know a lot of people have used corrugated drain pipe and I saw a suggestion of using D-form weather stripping. I had tried purchasing some corrugated pipe from one big-box supply store and it didn't look quite right so I returned it. I'd welcome any suggestions  

[gmrhodes13[Staff]]

I added the cleaning kit tube to mine, why not if you are building the rest of it. I found the barrel rib material at a local second hand salvage yard, not sure the equivalent in the US. For more detailed info on the T21 head over to the MEPD forums