Will this fit on a spikes tactical ar15 lower marked mod st15 ? Multi cal on the side thx it's 5.56/223

Question

Will this fit on a spikes tactical ar15 lower marked mod st15 ? Multi cal on the side thx it&#039;s 5.56/223

Ethan · Accepted Answer

Yes, this Spikes Tactical 5.56 Cold Hammer Forged 8.1in Upper Receiver is compatible with your Spikes Tactical lower receiver.

Will this fit on a spikes tactical ar15 lower marked mod st15 ? Multi cal on the side thx it's 5.56/223 — 1 Answer