Ar9 upper to go with spikes ar9 lower?

Gun, shooting and equipment discussions unrelated to CHL issues

Moderator: carlson1

Post Reply

Topic author
Posts in topic: 1
Posts: 195
Joined: Thu Sep 07, 2017 10:38 pm
Location: Corpus Christi/ Houston

Ar9 upper to go with spikes ar9 lower?


Post by Killadocg23 » Tue Aug 27, 2019 9:36 pm

Gonna pick up a spikes 9mm lower here shortly. Curious as to if any one has built an AR9. What uppers fit the spikes . I know some can be finicky even though they all are supposed to be mil spec.

User avatar

The Annoyed Man
Senior Member
Posts in topic: 1
Posts: 25640
Joined: Wed Jan 16, 2008 12:59 pm
Location: North Richland Hills, Texas

Re: Ar9 upper to go with spikes ar9 lower?


Post by The Annoyed Man » Thu Aug 29, 2019 8:50 am

I’m not certain that there is a mil-spec for 9mm lowers. I do have a "multi-caliber" Spikes Gen II Billet lower, and it will fit all of my uppers, including 2 from BCM, and 4 others I built myself—including 2 that use the matching Spikes Gen II Billet upper.

So my guess is that pretty much any 9mm upper will fit your 9mm Spikes lower. I think the bigger issues are probably things like proper selection of the BCG and other moving parts.
• Give me Liberty or I'll get up and get it myself.
• I don't carry because of the odds, I carry because of the stakes.
• My dream is to have lived my life so well that future generations of leftists will demand my name be removed from buildings.
• Independent Minarchist.

Post Reply

Return to “General Gun, Shooting & Equipment Discussion”