MP5 Locking Piece Angle-Testing 3 Different LP's in a Full-Size to See How Much it ACTUALLY Matters

#MP5 #SP5 #AP5 #PTR9 TIMESTAMPS ARE AVAILABLE BELOW- In this video, I set out to see just how much switching out the locking piece on an MKE AP5 actually affects overall performance and reliability. The 3 locking pieces tested were: MKE AP5 OEM (not sure the exact angle), RCM 90 degree, RCM 80 degree. Testing was performed with and without the addition of a Rugged Obsidian 9, in its short configuration. Test platform is an MKE AP5, with an 8.9" barrel. 00:00 Intro and Testing Setup Details 02:47 Factory MKE Locking Piece, Unsuppressed 06:12 Factory MKE Locking Piece, Suppressed 09:13 Switching to the 90 Degree RCM LP and Checking Bolt Gap 11:49 RCM 90 Degree LP, Unsuppressed 13:34 RCM 90 Degree LP, Suppressed 14:46 How to Help Keep the Channel Going - TRC eBay Store 15:30 RCM 80 Degree LP, Checking Bolt Gap 16:38 RCM 80 Degree LP, Unsuppressed 20:21 RCM 80 Degree LP, Suppressed 22:08 Recap Before Running Challenging Tests 22:29 RCM 80 Degree LP, Shooting Freehand w/Push-Pull Method 25:05 RCM 80 Degree LP, Shooting One & 2 Handed Arms-Out "Pistol Style" 26:05 Which One am I Going to Use, and WHY? 26:49 Back-to-Back Comparison, Factory LP vs 80 Degree RCM LP 29:31 Conclusions 31:29 TRC eBay Store Details, What We Make ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ [ ⚡ ] NOW ON ODYSEE Full unrestricted content and NO ADS! 🔗 https://odysee.com/@The_Reloading_Cra... ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ [ 🛒 ] TRC EBAY STORE Interested in our products? Shop here: 🔗 https://www.ebay.com/str/trcthereload... ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ [ 📺 ] FOLLOW THE RELOADING CRAFT Unrestricted and detailed reloading content is available for free! Support options are available if you’d like to back our work. ▶ ODYSEE: https://odysee.com/@The_Reloading_Cra... ▶ RUMBLE: https://rumble.com/user/The_Reloading... ▶ YOUTUBE:    / @thereloadingcraft   ⚠️ SAFETY & LEGAL NOTICE - PLEASE READ ⚠️ ———————————————————————————————————————————————————— The content produced by "The Reloading Craft" is intended for ENTERTAINMENT, INFORMATIONAL, AND DEMONSTRATION PURPOSES ONLY. This content does NOT constitute professional, engineering, or gunsmithing advice. It is not a substitute for formal training, hands-on instruction, or consultation with a qualified professional. 1. PRECISION & RESPONSIBILITY: Handloading and firearm maintenance require strict adherence to established safety protocols. By viewing this content, you agree that the safety of your process is STRICTLY YOUR RESPONSIBILITY and performed entirely AT YOUR OWN RISK. 2. NO LIABILITY: "The Reloading Craft," its owners, and affiliates assume NO RESPONSIBILITY OR LIABILITY for any actions taken by viewers, or for any property damage, injury, death, or consequential damages resulting from the use or misuse of information presented herein. 3. DATA VERIFICATION: Never rely on a single source for technical data. ALWAYS verify load recipes, procedures, and dimensions against current, reputable reloading manuals before proceeding. No guarantees are made regarding data accuracy, completeness, or safety. 4. COMPONENT VARIATION WARNING: Handloading data is highly sensitive to component variation—including powder lot, brass, primers, bullets, case volume, seating depth, and environmental conditions—which can significantly affect pressure, performance, and safety. Data shown may be unsafe under different conditions; do not assume it is universally safe. 5. QUALIFIED GUNSMITHING: Any mechanical modification to a firearm should be performed or inspected by a competent, qualified professional. The individual performing the work assumes all responsibility and liability for the functional integrity and safety of the firearm. 6. LEGAL COMPLIANCE: Viewers are solely responsible for complying with all applicable local, state, and federal laws and regulations. This content is intended only for individuals who are legally permitted to handle firearms, ammunition, and related components. 7. SAFETY STANDARDS: Always follow industry-standard safety procedures, including appropriate protective equipment (eye/ear protection) and maintaining a clean, organized workspace. 8. EXTERNAL LINKS: "The Reloading Craft" is not responsible for the content, terms, or privacy practices of third-party platforms (Odysee, Rumble, eBay, etc.) linked herein. BY CONTINUING TO WATCH, YOU AGREE TO HOLD "THE RELOADING CRAFT" HARMLESS FROM ANY AND ALL CLAIMS OR LIABILITIES. RESPECT THE CRAFT. FOLLOW THE MANUALS. WORK AT YOUR OWN RISK. #RockyMountainReloading #RMR #Alfa-Proj #RIA #Tatargets #brownells #LTT #Athlon #Radar #Chronograph #Norma #TRC #Osight #Ruger #Holosun #SmithandWesson #Borebuddy #CMMG #22LR #sinterfire #reloading #frangible #reloadingbench #hornady #lee_precision #redding #redding_reloading #dillonprecision #dillon_precision #lyman #frankford_arsenal #starrett #rangeday #hecklerandkoch #HK #waltherarms #Meprolight