Tater Builds an AR15 (Part One)

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1m Dec 3, 2021

This is the first part of a two-part series where we build an AR15 using the KP15 lower receiver. In this episode, we go through trial and error as we assemble the lower receiver. We then save the world from Stewart Little.

Due to this being my first ever build, I wouldn't recommend this as a guide. Instead, I recommend you check out these sources here:
PewPewTactical's Guide:
Tactical Girlfriend's Guide:

Footage used during the sketch is done by Varusteleka:

Music Used:
Eine Kleine Nachtmusik - Mozart
Sea Shanty II - OSRS OST
A Summer Place - Percy Faith
No. 10 A New Beginning - Esther Abrami
Playback - Nieve
Dark Rebirth - JJBA OST
Requiem in D Minor, K 626 - Mozart
AAAAAAAAAAAA (Sly Marbo's Theme) - Stingstorm
Wings of Liberty - Ace Combat 6 OST
Waltz of the Flowers - Tchaikovsky
1812 Overture - Tchaikovsky

Table of Contents

Timecode Title
00:00:00 Introduction
00:01:17 Parts Breakdown
00:02:13 Assembling the Magazine Retention Assembly
00:03:15 Assembling the Bolt Release Assembly
00:04:38 Assembling the Trigger and Safety Assembly
00:06:01 Shooting Footage
00:08:57 Conclusion

About Tater Pictures

Welcome to Tater Pictures! A long time ago, I use to make crappy Runescape videos. After spending some time in film school and doing Army stuff, I now make slightly better comedy videos. Sometimes, I deviate and make videos about history and other subjects.

1 Comment

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Tater Pictures @taterpictures 1m 1 month ago

As mentioned, this is my first AR build, so mistakes were made. Here are some corrections coming from Russell Phaghen, the guy behind the KP15 Lower Reciever.

"Your bolt catch plunger is too high. The top of it should be even with the outer wall of the receiver.

Use a drill by hand to make sure the hole is clear of plastic flash.

The pins of the SLT should be installed right to left with the notches on the left side.

The cassette should be dropped in first

Install the selector

Then install the trigger/hammer pin.

The selector detent usually needs to be pushed down with a tool when sliding the selector over it

Did you install the SCSS backwards on purpose?

The SLT is what allows the selector to be manipulated regardless of hammer position, not the lower

The bolt catch bouncing open is a symptom of excessive bolt speed. Your ejection pattern is forward. You need a heavier buffer system most likely."

I'll probably do an addendum video.

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