Does the Lead Star Arms Skeletonized LSA-15/ work with the PSA GEN4 4" 9mm 5" Lightweight Hex M-LOK?

Lead Star Arms Skeletonized LSA-15/AR-15 Receiver Set with 11" Ravage Handguard, Black

Lower Receiver

Lead Star Arms Skeletonized LSA-15/ Receiver Set

Upper Receiver

PSA GEN4 4" 9mm 5" Lightweight Hex M-LOK Railed Upper

Lead Star Arms lower and Palmetto State Armory upper compatibility

They fit, with a catch

The Lead Star Arms Skeletonized LSA-15/ Receiver Set works with the PSA GEN4 4" 9mm 5" Lightweight Hex M-LOK Railed, with one thing to check: Lower Receiver (AR-15) needs a 9mm magazine well adapter for a PCC/9mm build.

No one has built this exact setup yet, but Lead Star Arms lowers with Palmetto State Armory uppers are a common pairing.

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 Lead Star Arms lower and Palmetto State Armory upper

Backed by tens of thousands of qualified builds that have both a lower and an upper.

Lead Star Arms Skeletonized LSA-15/
Of lower picks
0.1%
Median paid
n/a
PSA GEN4 4" 9mm 5" Lightweight Hex M-LOK
Of upper picks
0%
Median paid
n/a

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 Lead Star Arms 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.

Lead Star Arms Skeletonized vs PSA GEN4 4" 9mm 5" Lightweight: specs and prices

	Lead Star Arms Skeletonized	PSA GEN4 4" 9mm 5"
Best price	n/a	n/a
Stores	n/a	n/a
Assembly	Set	Complete
Platform	AR-15	AR-15
Color	Black	n/a
Caliber	n/a	9mm
Length	n/a	4

Upper Receivers most paired with Lead Star Arms lowers

The Lead Star Arms Skeletonized LSA-15/ is not in enough builds yet, so these are the most picked next to any Lead Star Arms lower. Only parts our rules say fit the Lead Star Arms Skeletonized LSA-15/ are listed.

Lower Receivers most paired with Palmetto State Armory uppers

The PSA GEN4 4" 9mm 5" Lightweight Hex M-LOK is not in enough builds yet, so these are the most picked next to any Palmetto State Armory upper. Only parts our rules say fit the PSA GEN4 4" 9mm 5" Lightweight Hex M-LOK are listed.