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Olcan lower

AL1EN

Joined: Apr 2013

Posts: 1069

EE: 100% (151)

MI, USA

Posted: 4/7/2026 8:13:35 AM EDT

Anyone provide detailed pictures of this lower, top down mostly. Wondering if I can add a BCA bolt action upper to this and make my own custom cheek piece.

AL1EN

Joined: Apr 2013

Posts: 1099

EE: 100% (151)

MI, USA

Posted: 8/2/2026 11:35:56 AM EDT

[#1]

Following up on this, I purchased the olcan lower and two nice features here. The grip portion with the fire control group has a recessed hole so pinch style handguards fit. And if you remove the buffer plug held in by a massive roll pin it will allow a bolt carrier to pass through. Now I had too 3D printed a new cheek rest and just for looks a shroud that covers the handguard.

Without further ado this is my BCA bolt action upper on an Olcan lower in 300 blk.

fenrisulfr

Joined: Apr 2016

Posts: 244

EE: 100% (1)

USA

Posted: 8/2/2026 11:44:59 AM EDT

[#2]

So bullpup bolt action? Nice.

AL1EN

Joined: Apr 2013

Posts: 1100

EE: 100% (151)

MI, USA

Posted: 8/2/2026 11:47:47 AM EDT

[#3]

I’m fairly certain with a new cheek rest design I can make this Lower work with the BCA bufferless 9mm upper as well.

Might be my next project.

fenrisulfr

Joined: Apr 2016

Posts: 246

EE: 100% (1)

USA

Posted: 8/2/2026 12:14:10 PM EDT

[#4]

Any reason you did this other than it's cool and you could do it?

AL1EN

Joined: Apr 2013

Posts: 1101

EE: 100% (151)

MI, USA

Posted: 8/2/2026 12:31:49 PM EDT

[#5]

I’m Intrigued by the bulpup design and it’s also “can I make this work” that sucks me in.

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Olcan lower

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Olcan lower

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Olcan lower