Does the Spike's Tactical STLS018 Spider work with the PSA Upper 5.56 16" Mid-Length 1/7?
Lower Receiver
Spike's Tactical STLS018 Spider Fire/Safe Stripped Lower 223
from $107.10
Upper Receiver
PSA Upper 5.56 16" Mid-Length 1/7 Nitride 13.5" M-LOK w/NiBx
from $369.99
Spike's Tactical lower and Palmetto State Armory upper compatibility
Yes, they fit
The Spike's Tactical STLS018 Spider Fire/Safe works with the PSA Upper 5.56 16" Mid-Length 1/7 Nitride 13.5". Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
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.
How often builders pair the Spike's Tactical lower and Palmetto State Armory upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Spike's Tactical STLS018 Spider and any upper
Share of builds with the PSA Upper 5.56 16" Mid-Length 1/7 and any lower
- This pairSpike's Tactical STLS018 Spider Fire/Safe14%
Spike's Tactical STLS018 Spider
- Of lower picks
- 0.1%
- Median paid
- $20
PSA Upper 5.56 16" Mid-Length 1/7
- Of upper picks
- 0%
- Median paid
- $370
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Spike's Tactical lower and Palmetto State Armory upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Trigger
Pistol Grip
Charging Handle
Fits both
Bolt Carrier Group
Stock & Brace
Handguard
Gas Block
Spike's Tactical STLS018 vs PSA Upper 5.56 16" Mid-Length: specs and prices
| Spike's Tactical STLS018 | PSA Upper 5.56 16" | |
|---|---|---|
| Best price | $107.10 at AR15 Discounts | $369.99 at Palmetto State Armory |
| Stores | 0 of 1 in stock | 1 of 1 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Color | Black | n/a |
| Gas System Length | n/a | Mid-Length |
| Length | n/a | 16 |
Both for $477.09 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 STLS018 Spider: lowest $107.10 on Jul 5, highest $107.10 on Jul 5 over the last 90 days.
- PSA Upper 5.56 16" Mid-Length 1/7: lowest $369.99 on Jul 12, highest $369.99 on Jul 12 over the last 90 days.
Upper Receivers frequently paired with the Spike's Tactical STLS018 Spider
Most picked next to it in real builds. Only parts our rules say fit the Spike's Tactical STLS018 Spider are listed.
Lower Receivers frequently paired with the PSA Upper 5.56 16" Mid-Length 1/7
Most picked next to it in real builds. Only parts our rules say fit the PSA Upper 5.56 16" Mid-Length 1/7 are listed.
