© 2019 Double Tap Shooting

PSA 10.5" AR15 Steel Case Meltdown!!

The equipment

The equipment

PSA 10.5" 5.56 NATO 1/7 NITRIDE 9" M-LOK MOE EPT SBA3 PISTOL KIT

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Click pictures to go to PSA's product page.

Barrel Length: 10.5"
Barrel Profile: A2
Gas System: Carbine-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride 
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO 
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: PSA A2 Flash Hider
Receiver Material: Forged 7075 T6 Aluminum
Receiver Type: M4
Handguard Type: PSA 9" Lightweight M-Lok Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 20"
Build Kit: MOE SBA3 EPT Pistol Kit, Black

PSA AR-15 LOWER SAFE/FIRE - 1728

The ammunition

Round 1 - June 22nd, 2019 - 500 Rounds - Wolf "Military Classic"  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Round 2 - June 29th, 2019 - 500 Rounds - Wolf "Military Classic"  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Round 3 - July 7th, 2019 - 1000 Rounds - TulAmmo  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Round 4 - June 20th, 2019 - 500 Rounds - Wolf "Military Classic"  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Round 5 - Aug 4th, 2019 - 1000 Rounds - TulAmmo  .223, 62gn, HP, Steel Case, Berdan Primer, Non-Corrosive

Round 6 - Aug 24th, 2019 - 1500 Rounds - Wolf "Military Classic"  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Round 7 - Sept 7th, 2019 - 500 Rounds - Wolf "Military Classic"  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Round 8 - Sept 29th, 2019 - 1000 Rounds - TulAmmo  .223, 55gn, FMJ, Steel Case, Berdan Primer, Non-Corrosive

Current round count - 6,500

cleanings

Round 3 - July 7th, 2019 - Sprayed brake cleaner into chamber to remove lacquer, pulled bore snake with CLP a couple times.

Round 6 - Aug 24th, 2019 - Sprayed brake cleaner into chamber to remove lacquer, pulled bore snake with CLP a couple times.

malfunctions 

Round 1: None

Round 2: None

Round 3: 

Somewhere around 600 rounds on the day had a failure to extract which resulted in a double feed. About 100 rounds later had the same thing, Stopped and let it cool down, sprayed out chamber with brake cleaner, ran bore snake down it with CLP and continued fire.

Round 4: None

Round 5: None

Round 6: 

Somewhere around 900 rounds on the day had a failure to extract which resulted in a double feed. Stopped and let it cool down, sprayed out chamber with brake cleaner, ran bore snake down it with CLP and continued fire.

At about 1300 rounds on the day had a bolt over. Cleared and reinserted the same magazine and continued fire. 10 rounds later it did it again. Magazine was an old USGI, black follower, it was removed from the magazine line up. This problem never reoccurred that day.

Round 7: None

Round 8: None

Videos

Round 1