Does the Rain Ordnance SPEC15 Forged 223 Rem/5.56 work with the Griffin Armament .300 Blackout Hedp?

Black Rain Ordnance SPEC15 Forged 223 Rem/5.56 NATO Lower, Black Finish- BROSPEC15LR

Lower Receiver

Rain Ordnance SPEC15 Forged 223 Rem/5.56 NATO Lower

from $122.29

Griffin Armament .300 Blackout Hedp Ar-15 Barrel - 9.5"

Barrel

Griffin Armament .300 Blackout Hedp

from $246.95

Black Rain Ordnance lower and Griffin Armament barrel compatibility

Yes, they fit

The Rain Ordnance SPEC15 Forged 223 Rem/5.56 NATO works with the Griffin Armament .300 Blackout Hedp. 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 Black Rain Ordnance lower and Griffin Armament barrel

Backed by thousands of qualified builds that have both a lower and a barrel.

Barrels builders put on the Rain Ordnance SPEC15 Forged 223 Rem/5.56

Share of builds with the Rain Ordnance SPEC15 Forged 223 Rem/5.56 and any barrel

Lower Receivers builders put under the Griffin Armament .300 Blackout Hedp

Share of builds with the Griffin Armament .300 Blackout Hedp and any lower

  • Rain Ordnance SPEC15 Forged 223 Rem/5.56

    Of lower picks
    0.1%
    Median paid
    $122

  • Griffin Armament .300 Blackout Hedp

    Of barrel picks
    0.1%
    Median paid
    $280
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 Black Rain Ordnance lower and Griffin Armament barrel

The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.

Charging Handle

Upper Receiver

Trigger

Bolt Carrier Group

Pistol Grip

Handguard

Stock & Brace

Buffer Tube Assembly

Gas Block

Rain Ordnance SPEC15 Forged vs Griffin Armament .300 Blackout: specs and prices

Rain Ordnance SPEC15 ForgedGriffin Armament .300
Best price$122.29 at BattleHawk Armory$246.95 at Optics Planet
Stores0 of 1 in stock1 of 1 in stock
AssemblyStrippedn/a
PlatformAR-15n/a
Caliber5.56 NATO300 Blackout
ColorBlackn/a
Gas Systemn/aPistol
Lengthn/a9.5
Twistn/a1:8
Contourn/aMedium
Threadn/a5/8x24
Weightn/a18.7

Both for $369.24 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.

Rain Ordnance SPEC15 Forged 223 Rem/5.56 NATO

  • BattleHawk Armoryout of stock$122.29

Griffin Armament .300 Blackout Hedp

Price history, last 90 days

  • Griffin Armament .300 Blackout Hedp: lowest $246.95 on Aug 29, highest $280.25 on Jul 5 over the last 90 days.

Barrels frequently paired with the Rain Ordnance SPEC15 Forged 223 Rem/5.56

Most picked next to it in real builds. Only parts our rules say fit the Rain Ordnance SPEC15 Forged 223 Rem/5.56 are listed.

Lower Receivers frequently paired with the Griffin Armament .300 Blackout Hedp

Most picked next to it in real builds. Only parts our rules say fit the Griffin Armament .300 Blackout Hedp are listed.