Nerf Mod - K26 Sentinel Brass Breech

Опубликовано: 01 Август 2026
на канале: Dynamic Methodologies
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Embracing my inner nerd! I debated whether or not to post this video to this channel and ultimately I figure if you follow us for Parkour vids, just ignore this one.

For the rest of you, I actually modded a blaster for the first time! I love the Sentinel. Sure, it has a low rate of fire, but the power I've been able to get out of it feels awesome!

The original inspiration for this came from @Make.Test.Battle and their Sentinel video:    • [Nerf Build Log] Brass Breech Mod Buzzbee ...  . However, they never really explained what springs they used or what the dimensions were for their brass breech.

The breech in this video is using a dart pusher attached the to plunger tube which consists of:
1/2" - cut with tube cutters to round the edge
17/32" sleeved over
9/16" around the base at the plunger tube

The barrel is just 9/16".

As I mentioned, the spring is a K26 and I cut it down to 8". Even though it never gets anywhere close to full compression, it still packs a punch and I was getting an average of 121 FPS.

Thanks to the tightening rings, probably 1 in 50 darts jams during a war.

This is my first ever mod, so feel free to point out faults or suggest some alterations! Thanks everyone!