Does the Spike's Tactical Lower work with the Criterion 18" HBAR Contour?
Spike's Tactical lower and Criterion Barrels barrel compatibility
Yes, they fit
The Spike's Tactical Lower works with the Criterion 18" HBAR Contour. Our compatibility rules found no conflict between them.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
Spike's Tactical Lower vs Criterion 18" HBAR Contour: specs and prices
| Spike's Tactical Lower | Criterion 18" HBAR Contour | |
|---|---|---|
| Best price | $107.10 at MidwayUSA | $283.99 at Ammunition Depot |
| Stores | 6 of 6 in stock | 2 of 3 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Caliber | Multi | .223 Wylde |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Gas System | n/a | Rifle |
| Length | n/a | 18 |
| Twist | n/a | 1:8 |
| Contour | n/a | HBAR |
| Thread | n/a | 1/2x28 |
| Weight | 8.6 | 2.65 |
Both for $391.09 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Price history, last 90 days
- Spike's Tactical Lower: lowest $107.10 on Jul 5, highest $107.10 on Jul 5 over the last 90 days.
- Criterion 18" HBAR Contour: lowest $283.99 on Sep 30, highest $313.49 on Jul 5 over the last 90 days.

