Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor

300 Blackout Picture thread (Page 54 of 54)

Previous Page
/ 54
Next Page
12/30/2025 1:28:26 PM EDT
[#1]
Attached File


My 2nd 300blk gun.
12/31/2025 7:08:58 AM EDT
[#2]
Quote History
Originally Posted By Ape_Factory:
https://i.postimg.cc/wjCvJRwz/IMG_8670.jpg
View Quote



What cheek rest is that?
12/31/2025 10:03:54 PM EDT
[#3]
1/13/2026 1:10:04 PM EDT
[#4]
SBR, haven't replaced the brace yet.

1/13/2026 8:10:33 PM EDT
[#5]
Attached File




Attached File
Satisfaction is the death of desire.

1/15/2026 6:36:40 PM EDT
[#6]
Quote History
Originally Posted By Eyekahn:


Can you give me all the details about that upper? MCX's are confusing. Does it have adjustable gas?
View Quote


@Eyekahn

Built it as a clone-ish LVAW. It’s a Legacy MCX upper with a 6.75” 300BLK barrel. I think it’s a Virtus barrel and bolt, I can’t recall, but I pieced it together. Lancer CF handguard and a CAT ODB QD suppressor. Using a KAC front sight over the rail interface. NGAL/Modlite/T2/G45 to round it out.

SIG adapter kit to convert a KAC mil-spec lower to accept the MCX upper and stock. G$ MCX trigger.

The MCX has a (+) and (-) setting for the gas valve native to the design. I’ve added a J. Bennett Designs Omega valve, which gives me 4 position adjustable gas. There was quite an improvement in reliability using the Omega valve with the flow through can. Wasn’t getting enough gas to the action previously.
2/12/2026 11:41:31 PM EDT
[#7]
Attached File


My 300BO bedside gat
2/13/2026 1:55:49 PM EDT
[#8]
Couple of custom BRN-180s in 300blk
6/16/2026 4:28:00 PM EDT
[#9]
6/16/2026 6:07:19 PM EDT
[#10]
Attached File


Attached File

Sign up to continue the discussion

Create a free account to share your thoughts, follow topics, and connect with the AR15.COM community.

Already a member? Sign In

Previous Page
/ 54
Next Page

300 Blackout Picture thread (Page 54 of 54)

AR Sponsor