Experience the next level of HPA with PULSAR D2 – an advanced evolution of the D version. Pair with a TITAN II or ASTER II Bluetooth ECU for unmatched performance and control via the GCS app on mobile. Built on years of real-world feedback and technical refinement, PULSAR D2 redefines what an HPA engine can be. Designed for maximum performance, unmatched reliability, and effortless installation – even for users with no technical background. Engineered to operate at very wide range of pressures. At its core is a completely reimagined poppet design combined with a larger compression chamber, ensuring a perfect air delivery profile, rock-solid stability. This translates to perfectly spun BBs and pin-point accuracy across a wide range of hop-up buckings. A centrally mounted nozzle spring replaces the previous tappet plate spring, ensuring reliability and flawless BB feeding. On top of that, the engine operates more quietly. PULSAR D2 HPA Engine (dual solenoid, closed-bolt) is pairable with a TITAN II Bluetooth® EXPERT (Sold Separately) – thanks to optical sensors combined with HPA technology, you get an absurd trigger response never before seen in airsoft. Get insane muzzle velocities & ROF from 1-40 RPS for CQB, assault, and sniper replicas. Closed-bolt and the innovative feed system guarantee you a straight and repeatable BB trajectory even in full AUTO – every time. Engine calibration has never been easier – PULSAR D2 when paired with a TITAN II Bluetooth® (Sold Separately) is introducing innovative cycle synchronization automation. The most advanced and user-friendly GCS app lets you access a multitude of settings and configurations like binary trigger, trigger sensitivity, ROF – live via Bluetooth®. You can even use a remote trigger on your smartwatch. Install the world's smallest and most advanced dual solenoid valve HPA engine in replicas where previously not possible due to size constraints. Choose one of the five nozzles included or use a regular AEG one. Take your HPA replica into the future! The D2 engine merges the best of both AEG (like off-axis resilience and enhanced BB spin) and HPA systems. Accuracy. Versatility. Compatibility. PULSAR D2 is unrivaled thanks to the following combination: Simple design: Innovative automatic synchronization of the nozzle movement cycle enables easier calibration – no need to fire thousands of rounds to achieve good FPS results and stable BB trajectories: Due to its innovative BB feed system and closed-bolt mode, it is definitely less sensitive to replica and assembly quality Razor-sharp accuracy of the system – no unstable hop-up system symptom like in other HPA systems Seamless integration & compatibility with the most advanced optical ETU/FCU TITAN II Bluetooth® (Sold Separately) for a synergy effect Compatibility with any AEG nozzles Zero nozzle wobble resulting in stable FPS when paired with GATE AEG nozzles, which translates into stable FPS and no mid-cap syndrome No FPS drops on AUTO relative to SEMI mode at high RPS – up to 40 RPS with no FPS drops System: Closed-Bolt or Open-Bolt Number of Solenoid Valves: 2 Nozzles: Universal AEG Sizes: Smallest dual solenoid valve HPA engine on the market ROF: 1-40 RPS – possible higher RPS value with an efficient magazine Muzzle Velocity: 250-650 FPS Operating Pressure: 60-140 PSI Gas Consumption Efficiency: ~0.7 PSI per shot at 90 PSI and 0.8L Tank. High precision, accuracy, greatest application versatility –the most affordable two-valve HPA engine on the market – PRO version.